The CMO Whisperer · 2026-06-19 · 23 min
My guest today is Mark Grether, SVP and General Manager of PayPal Ads. Mark has helped shape some of the biggest shifts in modern advertising, from co-founding Xaxis at WPP to leading Sizmek, through its acquisition by Amazon, to helping grow Uber advertising into a billion-dollar global business with more than half a million advertisers. Today at PayPal, he's focused on building an advertising business designed to help merchants sell smarter and consumers discover more of what they actually care about.
CMOs Should Think Bigger - Bruce Hershey52 / 100AI Won't Replace Leaders - Barry O’ReillyWhy People Really Quit - Bonnie Low-KramenAI Won't Save Marketing - Marco MatosAttention Drives Modern Growth - Ryan Harwood