Paul Brown is number one with a bullet. Lombardi only coached in the NFL for 9 years. He had fantastic success, winning 3 NFL championships and the first two Super Bowls and is well deserving to be mentioned as one of the top NFL coaches but he's not in the class of Paul Brown. Paul Brown's coaching legacy shows an over-arching dominance from high school to college to the Naval training base during WWII to the AAFC to the NFL. He developed ground breaking coaching techniques that are still used today and his coaching tree that is unparalleled. Everyone knows of six degrees of Kevin Bacon. Here are the direct coaching descendents of Paul Brown who either played under him or coached under him directly. All of these NFL head coaches will be prominently listed in the top-twenty NFL coaches: One degree of separation- Chuck Noll = Four Super Bowl victories- Don Shula = Four Super Bowl victories,Two Super Bowl losses- Blanton Collier = One NFL Championship, One NFL championship loss- Bill Walsh = Four Super Bowl victories Second degree of separation:- Tony Dungy (from Chuck Noll) One Super Bowl victory- Mike Holgren (from Bill Walsh) One Super Bowl victory with Two Super Bowl losses- John Fox (from Chuck Noll) One Super Bowl losswith four other less prominent HCs, Ray Perkins, Bill Arnsparger, Chuck Knox, Buddy Ryan Third degree of separation:- Bill Parcels (from Ray Perkins) Two Super Bowl victories, One Super Bowl loss- Jeff Fisher (from Buddy Ryan) One Super Bowl loss- Jon Gruden (from Bill Mike Holmgren) One Super Bowl victory- Andy Ried (from Mike Holmgren) One Super Bowl loss- Lovie Smith (from Tony Dungy) One Super Bowl loss- Mike Tomlin (from Tony Dungy) One Super Bowl victory and one SB loss Fouth degree of separation:- Bill Belichick (from Bill Parcels) Four Super Bowl victories and two SB losses- Bill Cowher (from Marty Shottenhiemer via Bill Arnsparger) One Super Bowl victory with one SB loss- Tom Coughlin (from Bill Parcels) Two Super Bowl victories Paul Brown directly coached his team to:- All four AAFC championshipsNo other team won an All American Football Conference champsionship. The Browns under Paul Brown, dominated the league to such a degree that the league folded. In his AAFC records were an UNDEFEATED SEASON that occured decades prior to Don Shula's Miami Dolphins undefeated season in the early 1970s (Shula is a direct descendent of Paul Brown having played guard on early Cleveland champship teams) The Browns were incorporated into the NFL during the 1950 season. The league decied to pit the upstart Browns against the NFL champion Eagles but the Browns beat the Eagles in their very first game by a score of 35 to 19 in Philadelphia. The Eagles tried to save face by claiming that the Browns were a BASKETBALL TEAM because they used the arm of Hall of Fame Quarterback Otto Graham who passed for 346 yards. Paul Brown heard what the Eagles said. Later that season the Browns faced off against Philadelpia in the second-last game of the season. Here is the box score of the Browns offense from December 3rd 1950: Runs - 41 for 69 yardsPasses - ZERO ATTEMPTS, ZERO YARDS, ZERO TOUCHDOWNS, ZERO INTERCEPTIONS That is right, Paul Brown DIDN'T ATTEMPT A SINGLE PASS. The first and ONLY time in NFL history that a team didn't attempt ONE PASS. Oh yeah, the Browns BEAT THE EAGLES 13 to 7 on their way to their first NFL Championship in their FIRST NFL season. That my friends is Paul Brown in a nutshell. He went to every single NFL Champship game from 1950 to 1956, winning half of those Championship games. He only had one losing season with the Browns, in 1956 but then came back and went to to another NFL Championship game in 1957. Brown's coaching legacy in his coaching tree shows> One NFL Championship25 Super Bowl Victories He developed so many innovations that built the game into what it is today. so many that I won't bother to list them but consider one wrinkle that he came up with that in his golden years, after Art Modell fired him and he wound up going to an expansion team, the Bengals, he developed a horizontal passing scheme for his weak armed QB with a young offensive coach, Bill Walsh, in what later would be called the West Coast offense. The statistics that the Browns and Paul Brown wracked up in the AAFC have never been folded into the NFL even though many NFL teams came into the NFL along with the Browns in 1950 and even though the Browns dominated the decade of the 1950s the AAFC was still considered inferior and has never been recognized. If they were it would be an even bigger landslide in favor of Paul Brown and what he contributed to the game.