In this articleATVIMSFTSatya Nadella, CEO of Microsoft.Charles Pertwee | Bloomberg | Getty ImagesMicrosoft tried to set a record in 2008, when then-CEO Steve Ballmer pursued plans to buy Yahoo for about $50 billion. It would have been the biggest U.S. tech deal ever, topping JDS Uniphase's $41 billion purchase of SDL in 2000.Fortunately for Microsoft,