Nebraska - Graduate Assistant - 1966-1968
Nebraska - Defensive Coordinator - 1969-1976
Arkansas - Defensive Coordinator - 1977-1979
Arkansas - Assistant Head - 1979
NC State - Head Coach - 1980-1982
Green Bay Packers - Linebackers - 1983
Buffalo Bills - Linebackers - 1984-1985
Minnesota Vikings - Linebackers - 1986-1989
New York Jets - Linebackers - 1990
Minnesota Vikings - Defensive Coordinator - 1991
Minnesota Vikings - Linebackers - 1992-1994
New Orleans Saints - Defensive Coordinator - 1995
Tampa Bay Buccaneers - Defensive Coordinator - 1996-2008
Tennessee - Defensive Coordinator - 2009
USC - Assistant Head - 2010-2012
Dallas Cowboys - Defensive Coordinator - 2013
Dallas Cowboys - Defensive Assistant - 2014
Jacksonville Jaguars - Defensive Assistant - 2016
Florida Atlantic - Defensive Assistant - 2017-2019
Mississippi - Player Development - 2020-2023