Leslie Frazier was fired after going 20-32-1 as head coach of the Minnesota Vikings.
Frazier was 5-10-1 in 2013 after riding running back Adrian Peterson to the playoffs in 2012, when Peterson topped 2,000 yards rushing.
"We have tremendous respect and appreciation for Leslie and what he has done for the Minnesota Vikings," Vikings owner Zygi Wilf said in a statement. "He stepped in and established a strong positive culture here and he has been the consummate professional as our head coach and in this community. Making this change is difficult, but what we determined is best for the organization."
Wilf stepped in as interim head coach when the Vikings parted with Brad Childress and was given the permanent job because of his connection with players, who rallied around the former NFL defensive back.
"Unfortunately, we did not achieve consistent success and did not achieve the progress we expected," Vikings general manager Rick Spielman said Monday. "We believe a coaching change is needed to help build a successful team moving forward."