I think one thing is that the Texas high school development of players and strength and conditioning programs have improved so much that there are 4* and 5* players everywhere and every college in the country is poaching high level talent from Texas. There's only a couple of coaches that can consistently field a powerhouse every year such as Dabo, and Saban. Then you have good coaches with so much talent they can't screw it up (Okla, Buckeyes, Notre Dame and LSU) Then there's Texas. They're not even the best recruiting team in Texas.

Tom Herman, Scott Frost, Lane Kiffin, Mike Norvell, Harbaugh and maybe Justin Fuentes are all plug and play coaches. Adequate but not likely to excel long term

The money folks in Texas might as well stick with Herman, the only way they're going to succeed is for a coach to establish some recruiting bases.