Those two are pretty good friends, in case you didn’t know that, and it’s difficult to separate their careers.

Hal Mumme was Mike Leach’s boss, and he was Dana Holgorsen’s boss, and he was Kliff Kingsbury’s boss.

Holgorsen played for Mumme and he coached for Leach when Kingsbury played for Leach. When Kingsbury was done chasing the NFL dream, Holgorsen hired him at Houston as a quality control assistant, and they were roommates for a while.

When Kevin Sumlin, who was their boss at Houston, needed someone at Texas A&M to replace Kingsbury after the offensive coordinator was named head coach at Texas Tech, Sumlin plucked Jake Spavital from Holgorsen’s staff.

It’s a fun story about the lineage of the Air Raid offense and all its disciples, but there’s a story we’re not telling: They fell from the same coaching tree, but they’ve branched out in very different directions.