Chuck Noll, American football player and coach (born 1932)

Charles Henry Noll was an American professional football player and head coach. Regarded as one of the greatest head coaches of all time, his sole head coaching position was for the Pittsburgh Steelers of the National Football League (NFL) from 1969 to 1991. When Noll retired after 23 years, only three other head coaches in NFL history had longer tenures with one team.