Computerworld - Microsoft CEO Steve Ballmer survived the flop that was Windows Vista, but he wasn't able to do the same after the disappointment of Windows 8.
"Last year, Ballmer said Windows 8 would be his defining moment," said Patrick Moorhead of Moor Insights & Strategy. "Now, this has caught up with him. Windows 8 is the primary reason why he's retiring, specifically Windows RT. There's been a lack of progress on Windows Phone, but the forcing function was clearly the write-down of the Surface RT."