"Microsoft CEO Steve Ballmer is said to have let go of Steven Sinofsky, former president of Microsoft's Windows and Windows Live division, as he was too divisive, according to Cnet.
A Microsoft executive familiar with the senior management stressed that there wasn't a single event that led to Sinofsky's departure after the launch of Windows 8. Instead, it's said that the relationship between Ballmer and Sinofsky deteriorated as the development on the firm's latest operating system progressed.
Sources suggest the two executives came to a number of disagreements in the past months. Although Ballmer wanted Sinofsky to exit the software giant, Microsoft stressed that the decision was mutual."
http://www.tomshardware.com/news/Steve-Ballmer-Microsoft-Windows-Sinofsky,19099.htmli see this comments as "blame that guy and fire him"
i know that he wasn't the only guy taking decisions and, seeing how things progressed from xp to win 7, things have been done step by step, removing, replacing and renaming things with the final complete craziness win 8 is