^ Exactly. This could have happened before if not for his mindnumbingly stupid game management and playcalling. If one or two of those games aren't botched, the team could get on a little roll like has happened now instead of always staying at the .500 mark. Once the team wins a few of those and starts gaining confidence, this can happen.
If anyone deserves credit, as much as people hate to admit it, it's Jerry. He recognized Garrett was overwhelmed (or simply not good) and took playcalling from him. He fired dbair's favorite Rob Ryan and hired Kiffin/Marinelli. He wanted Romo to have more say. He recognized how good Callahan was and kept him even after Garrett got pissy with him.
All good moves. Maybe it was 90% luck, but still, all good moves.