Paul Browns offense which he was an offensive guard, then Line Backers Coach for the AFL Chargers headcoach sid gillman, then the NFL Baltimore Defensive Coordinator headcoach don shula. with Bill Dunn, the young Rooney's, and chuck noll was able to but a defense on the field that shut down all the offenses at the time.
the only counterpart was the Oakland raiders, sid gillman hired al davis rb coach as being a good coach and recruiter. al had the knock of telling people what they wanted to hear.
al davis went on to owning the raiders, with chuck noll and the steelers it was the steelers how owned the AFC and won the superbowls.