Stephen Elop, former CEO of Nokia, appears to be lobbying hard to get the top job at Microsoft, or at least talking loudly enough about what he'd do if he gets the top job that makes me think he's not the right person for the position.
Xbox is making money for Microsoft. It has nothing to do with Office or the enterprise, which really is a good thing because it gives the company diversity outside of its historic core moneymakers. Further, of the consumer big three of Apple, Google, and Microsoft, only Microsoft has a footprint into the living room by virtue of being connected to the TV for games. The next generation Xbox One is designed to overlay onto existing TV and cable TV connections, allowing it to intermediate TV watching with the ability to inject Skype calling and add voice control for the selection of TV shows