Interesting suggestions, pretty much all successful turn-arounds have focused on the same core fundamental principles:
- Cutting costs to reign in expenses
- Focusing on the company's core businesses
- Heavy emphasis on the customer
To some extent axing Bing and Xbox might fit the first two criteria. Microsoft's in a tough spot right now for a number of their businesses...ironically, these aren't Bing or Xbox, which are both relatively predictable businesses compared with Windows and Office both of which are decades old cash cows but are seeing their existence threatened by new business models. Unfortunately, Microsoft is left with "the innovator's dilemma", to make the changes most might consider necessary requires that they do something that will cannibalize their existing businesses. Unfortunately, Microsoft's strategy in the last decade has been very poor missing out on several key opportunities they should have dominated, while sacrificing their most important asset (the partner network). They seem to be headed down a road where they essentially want to end up a bit like Samsung, which isn't a strong move for them strategically as it's highly competitive.
To be really successful today Microsoft needs to take a long hard look at who their customer is and what business they want to be in. For example, Bing tries to be in the advertisig business, but Microsoft's not really in the advertising business, that's not where they've excelled and put their focus. Windows Phone tries to be in the consumer business but that's not really their business either. Microsoft has always excelled at providing software platforms and being in the business of supporting developers, but lately Google has crushed them in that role. They've supported the partner network in monetizing a client base but they've been competing with their own partners rather than helping to make those partners more successful. They've supported businesses in productivity and that's the one area they've continued with fairly successfully, but for the most part they aren't in a position to do that across the board, their strengths are mostly in software platforms and services but they haven't created compatibility with those platforms and services so they've busy trying to promote their own devices, which is an expensive approach in a field where they have little expertise, I'd be wary of that approach.