Littrell spent four seasons at Texas Tech, where he coached under Leach, Holgorsen and Sonny Dykes. Littrell then worked under Dykes at Arizona in 2009, before being elevated to co-offensive coordinator and then offensive coordinator after Dykes left to become the head coach at Louisiana Tech. He's a Muskogee native and played at Oklahoma.
Chris Hatcher, Murray State head coach
A Hal Mumme disciple, Hatcher's version of the Air Raid — appropriately dubbed the “Hatch Attack” — ranks in the top 5 in the Football Championship Subdivision in total offense (484.36 yards per game), scoring offense (39.18 points per game) and passing offense (348.91 yards per game).
Bob Stitt, Colorado School of the Mines head coach
Considered one of the brightest offensive football minds at any level, Stitt and Holgorsen have exchanged philosophies over the years.
Jason Phillips, SMU co-offensive coordinator
Phillips spent nine seasons at Houston, including Holgorsen's two-year stint. He was the co-offensive coordinator under Holgorsen in 2008-09, then became the offensive coordinator when Holgorsen left for OSU.
Kliff Kingsbury, Texas A&M offensive coordinator
Probably a stretch, given that Kingsbury is a candidate for head coaching jobs, most notably at his alma mater, Texas Tech. And if that doesn't work out, he could return to College Station and continue to direct an offense run by Heisman winner Johnny Manziel.