It's the standard by which all coaches are measured. Everyone remembers winners.
Along with the quarterback, the head coach is regarded by many to be the most important and influential member of an NFL team.
NFL history will always look favorably upon coaches like Don Shula, Chuck Knoll, Tom Landry, Bill Walsh, and others because they were champions.
There's a reason the most coveted trophy in the NFL is named after Vince Lombardi. He won five NFL championships during a seven-year span.
There are only five current NFL head coaches who have won the Lombardi trophy (Belichick, Coughlin, Dungy, Gruden, and Holmgren).