In 1989, Gibbs was named head coach after Switzer was forced out following NCAA sanctions and a number of highly publicized off-the-field issues involving the Oklahoma football program.
[1] Gibbs stayed as head coach at Oklahoma for six years, leading the Sooners to a record of 44–23–2 in that time.
Even so, discontent with his lackluster record in big games led Oklahoma to force his resignation after the season.
Fired by the Saints after the conclusion of the 2008 season, Gibbs was subsequently hired by the Kansas City Chiefs as linebackers coach.
On November 5, 2012, Gibbs was named defensive coordinator of the Kansas City Chiefs after Romeo Crennel resigned from the position (though staying as head coach).