Depending on specificity of the question (ie. overall record or winning percentage) the answer will vary. Overall wins would be the Bears (712), winning percentage all-time is the Bears as well .575. The Bears hold combined regular & post-season wins, and the Bears and Cowboys share combined winning percentage (.575).
Single regular season is Patriots at 16-0 followed by the undefeated Dolphins team of '73 at 14-0 (obviously both 100% but Pats with two more wins). Complete season (including playoffs) is the Patriots at 18-1 followed by the '73 Dolphins with a record of 17-0.
Which coach became the winningest coach in NFL history while with the Dolphins
pittsburgh
The most winningest quarterback in the NFL is Brett Favre with 186 wins
New England Patriots
Mike Tomlin
NFL: Don Shula.
Don Shula, the winningest coach in NFL history.
1993 Don Shula Professional football Winningest NFL coach
921 washington huskies hec edmunson pavillion
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)
The Detroit Lions had the worst record in the NFL.
Current coach Mike Schafer is the winningest coach in Cornell men's hockey history with a record of 276-149-49 in his fifteen year career. GO BIG RED!!