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Episode 270: How Experimentation Becomes Culture

Product Thinking · 2026-06-03 · 14 min

0:00--:--

Key moments - from our scoring

Substance score

62 / 100

Five dimensions, 20 points each

Insight Density12 / 20
Originality13 / 20
Guest Caliber16 / 20
Specificity & Evidence11 / 20
Conversational Craft10 / 20

The episode explores the gap between organizations that claim to value experimentation and those that have truly embedded it into their culture and operations. David Bland identifies the core failure mode: when companies treat experimentation as a checkbox on the path to launching what they already decided to build, rather than a genuine risk-reduction approach. He emphasizes that training alone doesn't create lasting change - leadership must continuously evangelize and model the behavior, or teams revert to comfortable old patterns. Monica Lewis, VP of Product at LinkedIn, provides concrete tactics for building psychological safety: publicly owning mistakes, sharing unfinished thinking early with teams, and restructuring planning to give teams discovery time before roadmaps lock. She describes her portfolio allocation framework (60/30/10 or 70/20/10 split between sure bets, strategic bets, and venture bets) and how she adjusts it based on market disruption. Mario Rodriguez, Chief Product Officer at GitHub, reveals how Copilot's surprising success emerged through failures and high-iteration velocity - accepting that 70% rejection rates could still create enormous value when the 30% of accepted suggestions resonated deeply with developers. He stresses the importance of marrying technology with product discipline through rapid learning loops rather than success-focused storytelling.

Key takeaways

  • →Experimentation becomes theater when it's treated as a step toward launching a predetermined solution rather than as genuine risk-reduction; leaders must continuously model and evangelize it or teams revert to old patterns.
  • →Leadership behaviors that enable experimentation culture include publicly owning mistakes, sharing early-stage thinking for team input, and giving teams discovery time before locking roadmaps - not just training people in methodology.
  • →Portfolio allocation frameworks like 60/30/10 (sure bets, strategic bets, venture bets) help balance delivery commitments with innovation, and the mix should shift based on how much disruption the market presents.
  • →Products built through rapid iteration and learning from failures often outperform those designed for perfection upfront; high learning velocity (multiple experiments per week) compounds competitive advantage.
  • →Unexpected metrics like 20-30% acceptance rates can indicate exceptional product value if the accepted suggestions deliver outsized customer impact, requiring leaders to look beyond conventional success measures.

In this episode

  1. 1The Theater of Experimentation: Why It Doesn't Stick
  2. 2Leadership Habits That Build Psychological Safety for Testing
  3. 3Portfolio-Based Betting: Sure Bets, Strategic Bets, and Venture Bets
  4. 4Building Copilot Through Failures and High Iteration Velocity
  5. 5How AI Acceptance Rates Changed the Definition of Product Success

Mentioned

Product InstituteLinkedInGitHubDavid BlandMonica LewisMario RodriguezMelissa PerryTesting Business IdeasCopilot

Guests

Mario RodriguezDavid BlandMonica Lewis

Topics in this episode

Psychological safetyGitHub CopilotLearning loopsdeveloper-toolsTesting Business IdeasExperimentation cultureAI acceptance ratesOutcome-driven vs. output-driven productUX iteration velocityFill in the middle feature

Questions this episode answers

Why do high-profile companies fail at implementing experimentation programs?

They treat experimentation as a checkbox to complete before launching what they already decided to build, rather than as genuine risk-reduction. Without leadership continuously modeling and evangelizing it, teams revert to their old comfortable working patterns.

What specific leadership behaviors make teams feel safe enough to experiment?

Publicly owning and celebrating mistakes, sharing early unfinished thinking with teams for feedback, and restructuring planning to give teams discovery time before roadmaps lock - Monica Lewis practices all three to signal that psychological safety extends beyond words.

How should product leaders allocate resources across different types of bets?

Monica Lewis recommends a portfolio framework splitting resources roughly 60/30/10 (or 70/20/10) across sure bets, strategic bets, and venture bets, adjusting the mix based on how much disruption the market or business faces.

How did GitHub's Copilot succeed despite a 70% rejection rate?

The 30% of suggestions that were accepted delivered such tremendous value to developers that it created a transformative product experience; Mario Rodriguez learned that success metrics in AI-assisted tools differ from traditional product measures.

Why is learning velocity more important than success in building products?

If a team runs three experiments per week instead of one, they learn three times as fast; compounding learning iterations through failures and iteration outpaces perfecting a single direction upfront.

What our scoring noted

Our reviewer’s read on each dimension, with quotes from the episode.

Insight Density

12 / 20

The episode delivers several actionable insights - experimentation as a cultural practice requiring persistent leadership reinforcement, the 70-20-10 portfolio allocation framework, and learning through iteration velocity - but the format of stitching together short clips limits depth. Most insights are compressed into single sentences or brief anecdotes rather than explored rigorously, and the host's summarization adds commentary rather than new substance.

It was in our bloodstream, but it wasn't in our DNA
if you feel like you're being too repetitive or, oh, well, people got this, now I'm just going to move on. Don't, uh, keep repeating it

Originality

13 / 20

The portfolio allocation framework (70-20-10 or adjusted by disruption level) and the bloodstream/DNA distinction around culture are useful reframes, but the core thesis - that experimentation requires leadership commitment and iterative failure - is well-established in product management. The Copilot acceptance rate insight (30% acceptance can drive value) is interesting but underexplored, and most other advice mirrors standard product playbooks.

It was in our bloodstream, but it wasn't in our DNA, which meant it was something that was happening. Right. But it wasn't really a part of how they worked.
70% of the time that we suggested something to you, you did not accept it... it was completely different

Guest Caliber

16 / 20

The guest roster is genuinely strong: David Bland (author of Testing Business Ideas, deep practitioner experience); Monica Lewis (VP of Product at LinkedIn, tier-1 operator); Mario Rodriguez (CPO at GitHub, leader on a high-stakes AI product). These are not career podcast guests - they are practitioners at serious scale who have shipped real products and made hard organizational decisions. However, they appear only in short clips (estimated 3-5 minutes each), limiting depth of access.

Monica Lewis, VP of Product at LinkedIn
Mario Rodriguez, Chief product officer at, uh, GitHub, who takes us inside how Copilot was built through failures, high iteration, velocity

Specificity & Evidence

11 / 20

Some concrete details appear: Monica's move from 'create clarity first' to 'skeleton doc' approach, Copilot's 20-30% acceptance rates, the 70-20-10 resource allocation split, and references to GitHub's outcome-driven principles. But many claims lack specifics - no metrics on actual experimentation velocity gains, no named examples of failed experiments, no company names from David's anecdotes, and no concrete numbers on experimentation ROI. The 14-minute format works against depth.

acceptance rates were like in the 20%, 30%... 70% of the time that we suggested something to you, you did not accept it
roughly we want whatever, 60, 30, 10 or 70, 2010 across those categories

Conversational Craft

10 / 20

The host (Melissa Perry) asks reasonable opening questions and provides useful transitions, but does not probe deeply or push back on claims. Follow-ups are soft (e.g., "That's really cool" after the Copilot insight), and the format - short clips stitched together - prevents the extended back-and-forth that would reveal tensions or test ideas. The host summarizes and editorializes rather than deepening the inquiry.

That's really cool.
Monica showed what the answer looks like in practice. Owning mistakes publicly, sharing unfinished thinking early, giving teams room to do discovery before the plan is locked.

Conversation analysis

Computed from the transcript - who did the talking, and the words that came up most.

Share of words spoken

  • Speaker A30%
  • Speaker C26%
  • Speaker B24%
  • Speaker D20%

Most-used words

product22team11real10bets9different8experimentation8learning8feel7learn7across7sure6back6leadership5culture5leaders5stick5

Episode notes

What does it actually take for experimentation to stick inside a product organization? In this compilation episode of the Product Thinking Podcast, Melissa Perri brings together three perspectives on the leadership behaviors, portfolio decisions, and iteration loops that separate real experimentation from theater. David Bland, author of Testing Business Ideas, opens with what he has seen go wrong in well-funded companies that treat experimentation as a checkbox. He follows with a story about programs that died when leadership stopped reinforcing them, and the difference between living in a company's bloodstream versus its DNA. Monica Lewis, VP of Product at LinkedIn, shares the leadership habits that make teams feel safe to test, and the 70/20/10 portfolio framework she uses. Mario Rodriguez, Chief Product Officer at GitHub, closes with how Copilot was built through failures and an outcome that surprised even him. You'll hear us talk about: Why experimentation programs quietly die David Bland describes the checkbox mentality that turns experimentation into a process to navigate, not a way to de-risk.

Full transcript

14 min

Transcribed and scored by The B2B Podcast Index.

Speaker A: Creating great products isn't just about features or roadmaps. It's about how organizations think, decide and operate around products. Product Thinking explores the systems, leadership and culture behind successful product organizations. We're bringing together insights from multiple product leaders pulled from past conversations to explore one shared topic offering different perspectives and lessons from real world experience. I'm Melissa Perry and you're listening to the Product Thinking podcast podcast by Product Institute. Today we're exploring what it actually takes for experimentation to stick inside a product organization. Not the theory of it, but the specific behaviors, portfolio decisions and mindsets that make the difference between experimentation that's real and experimentation that becomes theater. We'll start with David Bland, author of Testing Business Ideas. He shares why even the most well funded companies get experimentation wrong and what the leaders who get it right actually do differently. After that, we'll hear From Monica Lewis, VP of Product at LinkedIn, on the leadership habits that make her team feel safe enough to test and learn, and how she thinks about placing bets across a portfolio, from sure bets to venture bets, depending on how disruptive the moment is. And we'll close with Mario Rodriguez, Chief product officer at, uh, GitHub, who takes us inside how Copilot was built through failures, high iteration, velocity and a product outcome that surprised even him. Let's start with David. What do you find is the right setup and the right conditions for a company that really does want to learn experimentation, not just train a bunch of people in it, but like wants to be experimental. What do they need to do to make sure that that sticks?

Speaker B: It's a big challenge. You know, I think I won't name it, I, uh, won't call out companies, but the companies I've worked with that were very high profile billion dollar companies in the past couple years, uh, where it didn't stick was they took this check the box mentality to it. So I ran experiments, check. What else do I need to do to just launch the thing I already want to launch? And if you take that, if that's your mindset, then no amount of training is really going to help you. Um, you really need to talk about how are we de risking things, how do we changing our mindset on how we approach things? But if it's just another box they have to check to get to the thing they want to build, then it's not going to stick. It's going to be theater. And so I've been really trying to, uh, one, work on real ideas. So I don't talk about this publicly a lot, but all My work behind the scenes, if you don't hear me, you know, you don't hear from me for a while, it's because I'm behind the scenes working on real businesses and real ideas. And so what I've tried to do over the course of, I'd say the last five to seven years has been every time I do a workshop, it's on real opportunities, the team to try to figure out, figure out. And I think that, uh, has been. That's worked out really well for me because I can take something that they're kind of worried about that has high uncertainty, and I can take the people that know about that thing and are working on it, and I can say, look, here are some new tools for you to think about this a different way, and we're going to practice them on your real opportunity. So the way I've designed all my. All my stuff has been. It's really been a learning experience for me. But I'll introduce a concept, I'll introduce a fun case study that's really short. And then I'm like, okay, now we're using it on your real stuff. And I feel like dual track of, yeah, I'm learning a new tool, but I'm also learning it on something. It's a real opportunity has really helped that a bit as far as just making it stick. Now you still have to have leadership, uh, evangelize it and say that it matters and actually show action that it matters. And so that takes time. There are some really prominent companies I've worked with in Silicon Valley who were like the poster child of doing this way of working. And they stopped talking about it, and everybody in the company stopped doing it. And they were really surprised. The quote they said to me, which I'll never forget, was, it was in our bloodstream, but it wasn't in our DNA, which meant it was something that was happening. Right. But it wasn't really a part of how they worked. And as soon as the leadership stopped talking about it, people just stopped doing it and they went back to working the way they did before, and they had to restart that entire program again. So I feel like for those of you listening, you know, if you feel like you're being too repetitive or, oh, well, people got this, now I'm just going to move on. Don't, uh, keep repeating it. It's part of your job as leaders to keep repeating this and showing it and enabling it and creating a culture and an environment where people can work this way. It never stops. So if you stop the teams will stop working this way and they'll go back to what really comfortable to them. So that's something that I've learned over time as I watch this ebb and flow of companies over the last 10 years or so in my career, that when they stop talking about this, they just revert back to how they were doing it before.

Speaker C: Yeah.

Speaker A: Oh my God, I love that quote. It was in our bloodstream, but not our DNA. That's amazing. And it's true. It's like it's not embedded. I also tell leaders too, when it comes to strategy and stuff like that, I'm like, if you don't feel like you repeated it 40,000 times, it did not sink into your team.

Speaker D: Right.

Speaker A: Like, you can't just be like, oh, here it is, and then walk away. And I think you have to be so repetitive as a leader to make sure it's really sinking in and people are doing that. What David put his finger on is something a lot of organizations don't want to admit. If experimentation is just another step on the path to shipping the thing you already decided to build, it isn't experimentation, it's theater. And the bloodstream, but not DNA problem he described is one of the most common ways organizations quietly lose this capability. The moment leadership stops modeling it, teams stop doing it. Which raises the real question, what does a leader actually have to do to make it stick? Here's Monica. I think a lot of leaders struggle with creating the environment that you're describing right now. And where I see them get tripped up is like, we're locking people into super hard roadmaps or like lockdown roadmaps. We're like ask, uh, we're not giving people time for discovery. How did you cultivate this environment? What are the factors that you think lead to your team to say, hey, I'm comfortable enough just like testing this out and then I'll bring it back to Monica and we'll see what happens.

Speaker D: To be very self aware, I still have a lot of learning to do, but I think some of the things that I try to do and my partners also, it's. It's about close collaboration with my ENG partner, my design partner and so forth. Is own mistakes, own when we're wrong. Got uh, it from the rooftop. So I've been in front of the company all hands and told that story that like, hey, I was wrong and it was a great thing that the team drove that. So I think they've seen me personally embrace those failure stories. I also try, although again, still in the journey, I try to share thinking early and really open it up to the team for feedback. And we're constantly iterating our processes. So even right now, for example, as we're thinking about planning what's next, my previous mindset was like, I need to create clarity. I can't share this, these early scratch notes with the team until I have a little bit more clarity. I need to circulate it with a few other senior people and we're trying something new that's like, here's the skeleton doc. What do you all think? How does this change thing that also, that gives them not just time to react and say, hey, why does that make sense and share their unique perspective. It also gives them more time to do some of that discovery research versus the just in time. Here's the guidance on the roadmap. Now you have two weeks to come back with this plan and then lock it down. So those are some of the things that I do that I hope helps influence the culture and the team and gives everyone a sense of, hey, my voice matters. I know how I can make an input and impact.

Speaker A: When you're leading your team and looking across your portfolio and figuring out where do I place like my big bets and how much should I invest and like where do we test, what's your methodology for kind of thinking about that and how much effort, let's say, or how much you want to put into these different tests or these different concepts and giving people room to go explore them.

Speaker D: Yeah, I've seen it may depend on the context of the organization.

Speaker A: Right.

Speaker D: If you're on a zero to one, then that's it. Let's swing for the fences and really lean into taking risks. If you're running a team that's like reasonably mature, the company is counting on us to deliver some engagement, to deliver some revenue, etc. Uh, we try to think about the different buckets, the different that these investments fall into. Here's the sure bets. We know they're going to pay off. Let's fund them, let's figure out the most expedient way to get these wins in. And then there's a next set of things that are either like strategic, we're pretty sure about, there's a couple unknowns and then there's the swing for the fence's venture bets. And I try to keep in mind, okay, roughly we want whatever, 60, 30, 10 or 70, 2010 across those categories. Or maybe it's a more disruptive time and I feel like there's more risk to our business. And I want to swing a lot more for the venture bets. I have that resource allocation in mind, but really the resourcing comes down to here's our goals and objectives across these buckets and maybe, actually maybe the sure bets, I can get these with less resourcing. And I don't need to see exactly 70% of all the people in the team working on this thing. It's uh, just a sense check that can be helpful. But just understanding do I need to deliver to the customers or to the company, that can then help you think across those, like shorter time horizon and then the like bigger swing bets in your portfolio.

Speaker A: Monica showed what the answer looks like in practice. Owning mistakes publicly, sharing unfinished thinking early, giving teams room to do discovery before the plan is locked. These aren't abstract culture principles. They're specific behaviors. And she described exactly how she changed her own habits to model them. The 702010 portfolio framework is how she applies that same rigor to resource allocation, adjusting the mix depending on how much disruption the moment calls for. For our final perspective, here's Mario on what happens when that kind of culture is put to the test. Building something genuinely new. When you launch Copilot and you started watching people use it, what surprised you? What kind of, uh, things did you observe in trends and how developers are interacting with it?

Speaker C: You know, when you have a product, it's funny, even though you're very proud of it, you're also very critical of it because, you know all of the flaws you have, it's like. And we knew, look, we developed For a living, GitHub is a developer company, right? So we knew the places that it was not doing well whenever we were using it on a daily basis. We also knew it was magical, something new. And when you get innovation out there, what really made it for me is how many people used it and how many people absolutely loved it. And um, even though it maybe when we first released it, acceptance rates were like in the 20%, 30%. So just think about this. 70% of the time that we suggested something to you, you did not accept it. So you would think that makes a horrible product, but no, because of all of the value, when you did, people just absolutely loved it. And that was a learning even for me. I do not come from MLOps or AI. So if you were to ask me, Mario, you design a product, you get it out there, and 70% of the people do not actually accept the suggestion, oh, I'm telling you that's not a good product. But in this case, it was completely different. So that surprised me is, oh my God, only a 30% acceptance or 20% acceptance can create something that changes the world on this. And I could see it then. The second thing was this one didn't surprise me. But uh, there were so many other cool things that people did with it. And how many people ended up programming just by giving comments to Copilot instead of having to write the entirety of that code? And how many people did that across many programming languages and natural language? So I could be programming in Spanish an example, or at least learning how to program in Spanish as another example. So I think that was one of the things that also surprised me is can the ability to use, use that model in multiple languages, not only programming languages, but also the way we speak.

Speaker A: That's really cool.

Speaker C: It's interesting because I still remember to a lot of what we do at GitHub. We operate on, um, this set of principles, right? And we're very much, and you know this very well because of uh, the build trap, we're very much outcome driven instead of output driven on these things. And because of that we also value the learning loop or your iteration velocity through that. So if there is a week and we could do three experiments, we learned three times. If in a week we can only do one experiment and we only learn once, so we value learning fast. So the way that we got there was through a bunch of failures, uh, believe it or not is you try this thing and you're like, nope, that did not work from a UX modality. You tried this other one that did not work. You tried this other one, you're like, this is starting to feel like it. So you play a lot with the product, you experiment a lot and then just learn and learn. And if you do that and you have some people that have good taste also have some expertise in the field because you do need expertise in developer tools. Then you start getting to a place where you're like, okay, now I could actually iterate towards something that is a good product. So those are the things through a lot of iteration and, and then a significant amount of engineering work then to figure out, okay, how to make it faster, how to do this thing called fill in the middle. Which was very important to us because a lot of development doesn't just happen on a new line at times. So you do want to fill it in the middle as well. So then you start marrying the technology with the product. But it was through failures, which is something like, I don't think the product discipline talks a lot about. We like to celebrate a lot of the successes of it, but I actually think you end up creating a better product through failures than through successes the majority of the time.

Speaker A: And that's a wrap on today's episode. There's a big gap between teams that talk about experimentation and teams that have actually made it part of how they work. And I think David, Monica, and Mario each showed a different piece of what closing that gap looks like. If you want to hear the full conversations, check out episodes 44, 227, and 223 to build stronger product management skills and learn practical approaches you can use day to day. Head over to Product Institute to learn more. Thank you so much for listening to the Product Thinking podcast. We'll be back with another episode bringing you practical perspectives from across the product community. We'll see you then.

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