Leslie Frazier's promotion to interim coach of the Vikings means the team needs someone to serve as the defensive coordinator.

That person will be Fred Pagac.

Pagac has been the Vikings linebackers coach since joining then first-year coach Brad Childress' staff in 2006. Pagac is in his 33rd season as a coach and 10th in the NFL. He played college football at Ohio State from 1970 to '73 and was an assistant with the Buckeyes from 1978 to 2000. He was defensive coordinator at Ohio State from 1996 to 1999 and was the assistant head coach to John Cooper in 2000.

Pagac coached linebackers from the Oakland Raiders from 2001-03 and then serve in the same role for the Kansas City Chiefs in 2004-05.

Frazier will continue to have plenty of day-to-day input when it comes to the defense that he has coordinated since the 2007 season.