HC - Ditka. He won a Superbowl, and was a good motivator. Unlike other coaches, if he threatened to kick a player's ass, they had good reason to believe he would be able to. He was a creative play caller, and he left the D alone to do their thing. Interesting interviews is an added bonus. 2nd is Lovie for getting alot out of his players, developing players on D.
DC - Buddy Ryan, no contest. DC of the best D that the NFL has ever seen. Excellent motivator, innovator on D, and good player development. When he took over at Philly, they had an excellent D with arguably the top front 7.
OC - Toss up between Landry and Turner. Landry kept the Bears slightly above average with little talent, while 2 of the top scoring offenses in since Halas came under Turner.
ST - Dave Toub, by a mile. Best special teams were under his watch.