[Zigurd]

It's a good choice because he will probably nurture the successful part of Microsoft that he spent he career nurturing. Microsoft will make a lot of money for decades to come.

It's a less than great choice because Microsoft's approach to finding The Next Big Consumer-oriented Thing has been wasteful, yet too conservative. Too conservative in terms of looking beyond Windows and PCs, but too lavish in spending on attempts that flop. Maybe Nadella will be more careful about splashing out lots of money building too many Surface RTs. But that's only half the problem.