Per the article - fostering a system that allows for taking big risks and possibly failing, but showing a track record over time of succeeding is much more beneficial to a company than yearly or half yearly cycles producing a number that has to fit a curve starting with comparing you against the peers in your group. Projects, life circumstances, and many other factors can have a one time effect.
Also, yes, Windows and Office are cash cows. MSFT is a company of 90k+ people, they aren't all working on the cash cows. There are individuals trying to create new products, enter new markets, etc. It is a complicated ecosystem. I'm pretty sure it was new HR and HR policies along with Bill relinquishing control that spurred a change in dynamics.
Also, yes, Windows and Office are cash cows. MSFT is a company of 90k+ people, they aren't all working on the cash cows. There are individuals trying to create new products, enter new markets, etc. It is a complicated ecosystem. I'm pretty sure it was new HR and HR policies along with Bill relinquishing control that spurred a change in dynamics.