Thomas Wade "Tom" Landry (September 11, 1924 – February 12, 2000) was an American football player and coach. He is legendary for his successes as the coach of the Dallas Cowboys. He is ranked as one of the greatest and most innovative coaches in NFL history, creating many new formations and methods. He invented the now popular 4-3 defense, and the "flex defense" system made famous by the "Doomsday Defense" squads he created during his tenure with the Dallas Cowboys.
Landry won 2 Super Bowl titles (VI, XII), 5 NFC titles, 13 Divisional titles, and compiled a 270-178-6 record, the 3rd most wins of all time for an NFL coach. His 20 career playoff victories are the most of any coach in NFL history. He was named the NFL Coach of the Year in 1966 and the NFC Coach of the Year in 1975.
His most impressive professional accomplishment is his record for coaching the Dallas Cowboys to 20 consecutive winning seasons (1966–1985), an NFL record that remains unbroken and unchallenged. It remains one of the longest winning streaks in all of professional sports history
I'd say that's one hell of a coaching career right there.
Can anyone else show me something better than this from a head coach in Cowboys history? Yeah, that's what I thought.
No one will ever break that 20 consecutive winning seasons streak, not ever.