And a couple of spot on YT comments:
Its crazy, Mangini is watching like a hawk for any hints where its going, none of the guys are giving him anything because they are so used to playing with each other but still Mike sticks the landing, brilliant to watch and hear.
The reason Mangini won is because he was like a piano player on the drums. He listened to everyone as much as he pushed for himself. He did more research, and knew exactly how the other members thought and played. He showed his licks and ambidexterity, but listened as well instead of trying to lead the original guys. He showed respect.