Texas & OU joining and slotting (on the whole, on the average) above A&M (no offense) with a HC that's had 6 seasons without winning even a division title.
The closest A&M came was the covid season where they went 9-1, but were 28 points worse than Alabama.
They never really got close to winning anything under him. So yeah, giving him all the dollars was stupid and letting him go makes sense.