Interesting article Trevor
As to the issue of Elop's removal indicating that Nadella plans to bury the mobile phone division (as some have suggested) I have to say that I am not so sure. Given your cogent point with regard to Elop using whatever he is in charge of as a power-base to drive achieving whatever he has been tasked with it would be logical of Nadella to place that under another division (Windows) and another guy (can't remember his name right now but I do remember that he is a phone guy) to ensure that Elop's former fiefdom is not in a position to be obstructive.