A company could spend all the money it wants recruiting, interviewing, and hiring the best people around. But if the boss is a jerk, those people will leave the first chance they get. In contrast, if you have great managers and team leads, not only will you get the best out of your people, but they'll also be more likely to stick around. For over 10 years, Google has conducted research under the code name Project Oxygen. The goal? Figuring out what makes the perfect manager.