Microsoft has had three CEOs since it was founded in 1975: Bill Gates, Steve Ballmer, and Satya Nadella, who’s been on the job eight months now. 

As Bethany McLean writes in this month’s Vanity Fair magazine, this is a pivotal moment for Microsoft and its leadership as the company shifts focus to cloud computing and mobile devices.  

Click the media player above to hear Bethany McLean in conversation with Marketplace’s David Gura.