I don't agree that Steve Ballmer should be in that list. Historically he has been responsible for Microsoft's massive expansion while Gates wanted to keep his company 'lean and mean', so in a way Ballmer is responsible for MS doing so much R&D, although he doesn't have the same ability as Gates to make his researchers focus on successful future products. OTOH the one CEO that I would put at the #1 spot is Stephen Elop, of Nokia. Nokia had a great OS, API and developer ecosystem and Elop gave all that away. Despite what the media is happy to report the Symbian OS is a perfect fit for mobile technology, touchscreen or not; a RTOS kernel (just like any kernel, as the Mach Kernel used in iOS) only needs the adequate drivers to handle multi-touch screens. There was no valid reason for giving all that to Accenture. Nokia is making a great range of devices, but now all developers will be coding for Android, thanks to Mr Elop.