I think Bill's passion has shifted too far away from Microsoft's business for him to ever come back in earnest. I assume that's why he left in the first place.

I think Bill's passion has shifted too far away from Microsoft's business for him to ever come back in earnest. I assume that's why he left in the first place. Jobs, on the other hand, was immersed in the same tech/philosophy at NeXT that he would subsequently use to revitalize Apple.