Don Shula has the most NFL wins, with 328. He also has the most wins including the playoffs, with 347.The coach with the best winning percentage is Guy Chamberlin. He had a record of 58-16-7 (.784)
Tom Brady and Ben Roethlisberger are the two quarterbacks that have the best winning percentage in their first 4 years in the NFL. Ben Roethlisberger has the fourth highest career winning percentage as a quarterback.
As of the 2013 season, the college football team that has the best winning percentage in Division 1 is Old Dominion with a winning percentage of .767. Old Dominion has only played 60 games in Division 1 though. Notre Dame is 2nd with a percentage of .733 Michigan is 3rd with a percentage of .732
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Bob Stoops of OU football team
For football coaches that coached more than one season at Auburn, that is Mike Donahue who was head football coach between 1904-1922 and compiled a record of 106-35-5 for a winning percentage of .743.
Phil Jackson- LA Lakers- has the best winning percentage but Don Nelson- Golden State Warriors- has the most wins. http://www.nba.com/history/records/victories_coaches.html
Ben Roethlisberger (Pittsburgh Steelers) has the best winning percentage by far.
Highest Winning Percentage, Regular Season Miami Dolphins .580 Highest Winning Percentage, Overall Dallas Cowboys .577
MIKE HOLMGREN157-100-0 (Regular Season)13-11 (Postseason)170-111-0 (Overall)
"As Mack Brown enters his 12th season as the head coach of the Texas Longhorns, the records just keep growing. With a mark at Texas of 115-26, he has the best winning percentage (.816) of any coach in UT history." http://www.mackbrown-texasfootball.com/sports/m-footbl/mtt/brown_mack00.html