Interesting Economist profile of Diane Greene.

ALPHA male, flamboyant, brash, megalomaniacal. Profiles of leading high-tech bosses tend to be littered with these terms, signs of the traits that they seem to need to make it to the top of the computer industry and stay there. But none of them applies to Diane Greene, the chief executive of VMware. Her company, which sells software that makes data centres run more efficiently, has quietly become the world’s fourth-most-valuable publicly traded software company, with a stockmarket value of nearly $20 billion. Its public listing last August was a bit like the heady dotcom days. Since then, the old guard has started ganging up on the newcomer, which boasts quarterly sales of nearly $440m and expects to grow by 50% this year. Microsoft, in particular, has vowed to take on VMware. On June 26th the software giant released its first competing product—predictably, as a free add-on to its flagship Windows operating system. How will Ms Greene play in the rough and tumble of the big league?