Frazier has been coaching in the NFL since 1999, including a stint as the Minnesota Vikings head coach which began on an interim basis for the final six games of the 2010 season. Frazier was then hired full-time and coached the Vikings for the next three seasons, posting a 21-32-1 record during that span. In the eight years since, he has spent time with the Tampa Bay Buccaneers, Baltimore Ravens and Buffalo Bills. He has been the Bills defensive coordinator and assistant head coach under Sean McDermott since 2017.
