Normally, I wouldn't want to clutter the fanposts, but this information warrants an exception. From ESPN's article yesterday:
While we await Phase 2 of Adams’ decision, here’s numerical context on Fisher that Keith Hawkins of ESPN Stats & Info compiled for us.
Fisher’s winning percentage now is .542 (142-120). Among NFL coaches who have at least 140 regular-season wins, only Dan Reeves has a lower win percentage. Reeves was 190-165-2 in the regular season, for a .535 mark. Among head coaches with at least 140 regular-season wins, no one has had fewer winning seasons than Fisher’s six. The next closest would be nine winning seasons (Mike Shanahan and Marv Levy). If you knock that down to a 120-win threshold, Fisher still has the fewest winning seasons. Jim Mora (215), Dick Vermeil (120), Mike Ditka (121) and Weeb Ewbank (130) all had seven winning seasons. Among coaches with 140 regular season wins, Fisher’s 5-6 playoff record makes for the third-worst playoff winning percentage (.455). Marty Schottenheimer is at .278 (5-13) , Chuck Knox at .389 (7-11) and Bud Grant is also at .455 (10-12).