I don't have enough total recall to back up your assertion that he's outcoached Old Billy, but he's a pretty damned good coach. Dan Marino had Don Shula who is widely considered one of the best coaches ever. Marino had 9 playoff appearances in 17 years. 13 years were with Shula coaching and they hit the playoffs 6 times. I guess you can talk about NFC Championship games as a detriment, but that's a bit like saying Marv Levy is a bad coach because he lost 4 superbowls.