Most of the major mobile players have gained new CEOs over the past two years, reflecting the massive changes going on in their sector, and the need for new blood and thinking. Not that the new chiefs always bring that ‘ as the speculation over who will succeed Paul Otellini at the helm of Intel, there is a balance to strike between promoting internally, for stability and intimate knowledge of the firm; and the ability to look at the company with fresh eyes. The firms with the biggest challenges are, predictably, the ones most likely to bring in outsiders, as Nokia did with Stephen Elop, after generations of Finnish veterans. But Google and Apple both got old-timers to take the…