While Anthony Munoz is without a doubt the greatest player in Cincinnati Bengal's history.
However, there wouldn't be the Cincinnati Bengal's without Paul Brown.
He is pro football's master innovator and organizer.
His record when he retired was 352 victories, 146 loses, and 14 ties (Including High School playoff's).
That was the greatest record ever by a coach at the time, regardless of competition level's.
He is simple the greatest coach ever. In my humble opinion.