As a CEO, merely investing in AI isn't enough. Rodney Zemmel, the global head of Blackstone's operating team, who leads a group that advises the firm's 250 portfolio companies, shared a playbook for how CEOs should use AI to get the most out of their investments. As of last February, those companies made a combined $226 billion in annual revenue, according to a press release announcing Zemmel's hire. AI is what "we're all going to be working on for the rest of our professional careers," Zemmel