As of today, Bill Gates ends his 32-year run as co-founder and chairman of Microsoft. By any measure, Gates belongs in the GameChangers Hall of Fame. He steps down after an incredible run, one of the most legendary careers in the history of business. Love him or hate him, he and his company changed the game forever in the world of PCs, computer games and the way we write documents and presentations. So who is going to take over as the next great GameChanging CEO? Let me tell you »