Five worst winning percentages for Super Bowl champion head coaches

NFL head coaches are regularly evaluated by their victories, primarily Super Bowl championships. The following list of head coaches have all won Super Bowls and are considered amongst the NFL's finest head coaches. However, some folks may argue that these coaches are "one-year wonders," because their overall track records aren't that impressive when compared to coaches like Bill Belichick, Bill Cowher, Tom Landry or Bill Walsh.

Tom Coughlin (.554)

Tom Coughlin started his coaching career by leading the Jacksonville Jaguars to the 1997 AFC Championship in their second season. Coughlin also led the New York Giants to one of the NFL's biggest Super Bowl upsets when he outcoached BIll Belichick and his previously undefeated New England Patriots in their quest for 19-0.

Coughlin coached the Jaguars to four consecutive playoff appearances after a 4-12 inaugural season. Two of those playoff appearances featured AFC Championship appearances. Coughlin has only managed playoff victories in one season since 2000.

Jon Gruden (.540)

Jon Gruden is always amongst the names mentioned for NFL and collegiate coaching vacancies. Currently a Monday Night Football color commentator, Gruden coached the Oakland Raiders and Tampa Bay Buccaneers from 1998-2008. While Dungy made the Buccaneers a perennial playoff competitor, Gruden helped get them over the top after they defeated the Oakland Raiders in Super Bowl XXXVII. Gruden was 39 at the time.

Gruden never lead the Buccaneers to another playoff victory after the 2002 season. Five of Gruden's final six seasons resulted in nine of fewer regular-season victories with two one-and-out playoff appearances.

Tom Flores (.527)

Tom Flores was definitely not a one-hit wonder after leading the Los Angeles Raiders to Super Bowls in 1980 and 1983. His record is deceiving because he had a 14-34 stint with the Seattle Seahawks from 1992-1994. Flores maintains a .610 record as the Raiders headman and was an elite coach during the 1980s.

Dick Vermeil (.524)

Dick Vermeil coached three teams into playoff contenders. Vermeil had two unspectacular seasons with the St. Louis Rams before Kurt Warner(notes) helped him win his first championship in 1999.

Vermeil's teams have been somewhat inconsistent over his fifteen-year coaching career. He's had numerous seasons that have featured 11 or more victories. On the contrary, he's had numerous sub .500 seasons. Vermeil served a 13-year coaching hiatus (1983-1996) after coaching the Philadelphia Eagles. He coached the Rams and Kansas City Chiefs before conclude his coaching career in 2005.

Weeb Ewbank (.502)

Weeb Ewbank won two NFL Championships before the Super Bowl Era and captured his only Super Bowl in Super Bowl III. Ewbank coached the Baltimore Colts and New York Jets for twenty seasons. Only four of those seasons led to playoff appearances. Ewbank finished his coaching career one game above .500. His Jets failed to eclipse the .500 mark in all four seasons that he coached following the AFL/NFL merger.

Head Coaches Below .502 Entering 2011: Norv Turner, Todd Haley, Pete Carroll, Ken Whisenhunt, Steve Spagnuolo, Gary Kubiak, Raheem Morris, Chan Gailey, Leslie Frazier, Jim Schwartz, Marvin Lewis.

Head Coaches Above .554 Entering 2011: Mike Smith(notes), Sean Payton, Jim Caldwell, Andy Reid, Jason Garrett, Mike Shanahan, Bill Belichick, Rex Ryan, John Harbaugh, Mike Tomlin, Mike McCarthy, Lovie Smith

Joshua Huffman grew up in Michigan's Upper Peninsula as a Green Bay Packers and Chicago Cubs enthusiast. His favorite Packer moments include Super Bowl XXXI, XLV, and Al Harris's(notes) interception return following Matt Hasselbeck's(notes) "We're gonna score" comments. As a Packers and Cubs fan, he suffered through Steve Bartman and "4th & 26" in a span of three months.

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Joshua Huffman is a member of the Yahoo! Contributor Network.
Updated Thursday, May 19, 2011