A key difference with Nadella is that as CEO he's earned credibility with the board, investors, analysts and many employees. Arguably, this should give him grea

A key difference with Nadella is that as CEO he's earned credibility with the board, investors, analysts and many employees. Arguably, this should give him greater leeway to adopt strategies which may yield less immediate revenue (such as increasing investment in security) with the justification that it will pay off in the longer run.