He and Gunnar Weidenfels detail the blockbuster unbundling of WBD: Decision "reflects our belief that each company will go further and faster apart than they can together."

Four years ago, David Zaslav clinched a debt-heavy deal to merge cable mainstay Discovery Inc. — which he’d run since 2006 — with what was then called WarnerMedia. The story he told investors was that the two entities’ diverse array of media assets “are better and more valuable together.” He doesn’t believe that anymore.

He points out that the AT&T deal that formed Warner Bros. Discovery in the first place helped set the template Zaslav and Wiedenfels are following into the future with Streaming & Studios and Global Networks.