Windows Head Steven Sinofsky to Leave Microsoft Windows unit president Steven Sinofsky is leaving the company, effective immediately, AllThingsD has confirmed. The move comes less than a month after Sinofsky presided over the launch of Windows 8 and Microsoft’s Surface tablet–products seen as key to the future if the PC software pioneer is to retain its position amid a market increasingly dominated by phones and tablets. Sources have said the move came amid growing tension between Sinofsky and other top executives. Sinofsky, though seen as highly talented, was viewed at the top levels as not the kind of team player that the company was looking for. The move is likened by some to the recent ouster at Apple of iOS head Scott Forstall. Not surprising, especially since news of Sinofsky's 'alleged' management style and differences with people around him started to emerge few months back. Also staying on the topic, here is a link to Ballmer's memo on the shakeup. Ballmer praised Steven’s work, but also talked about a need for “more integrated and rapid development cycles for our offerings.” Not sure what he means, but I guess they may choose to follow Apple, and update WinOS more rapidly instead of releasing 'service packs'.