The WSJ article describes who Microsoft has done a paradigm shift on how it writes software. The focus clearly is on quality and not on quantity, when it decides to drop WinFS, Bill Gates' baby, to force a modular, slimmer and slealthier version of the Windows core. A team led by Amitabh Srivastava has pioneered the writing of clean bug-free code.
Even though the initial latency has been high, Microsoft is facing much fewer bugs, and much higher speed to market once the basic platform is done.
But will this be good enough to fight Google back?