On Thursday, February 4, Satya Nadella will celebrate his second anniversary as the CEO of Microsoft. It's been an eventful couple of years. Microsoft has grown its crucial cloud business, released Windows 10 to a much better reception than its loathed predecessor, launched a bunch of great apps for iPhone and Android, and generally made people like it a lot more. But the real victory of Satya Nadella — the truly monumental shift — has been within the company. Under Nadella, Microsoft is pointed in one direction for first time in modern memory.