Becoming CEO can look like the culmination of a career. But the skills that help someone rise to the top job aren’t necessarily the ones that make them successful once they get there. Nitin Nohria, former dean of Harvard Business School, has spent three decades studying CEOs and working with new leaders as they adjust to the demands of the role. He says one of the biggest surprises for new CEOs is realizing that they can’t—and shouldn’t—run the company themselves. Instead, their job is to create the conditions for their leadership team to run it well. He also explains how CEOs can stay connected to their organizations, build the right leadership team, manage their boards, focus their time, and decide which emerging issues—including AI—actually deserve their attention. Nohria is author of The CEO: The Role, the Reality, the Responsibility.