I think it is possible that Terry could be a lot more successful at UT than he was at Fresno or UTEP - and I mean relative to his Big-12 / SEC conference peers.
Some coaches are great at developing, motivating and coaching up inferior players and helping them overachieve. They find success as underdogs at lower-level schools who don't have the talent and demands of a big-time program. And sometimes these coaches fail when they get to a big program and try to use the same tactics on elite one-and-done type recruits (see Billie Gillispie and many others). These "hard-ass" types can also struggle with the other duties they have at an elite program: Dealing with rich boosters, dealing with the media, handling high-level assistant coaches, managing egos where everyone wants to be the star, dealing with NIL, etc.
I think it is possible that Terry is actually good at all of these CEO-type activities that he never really had to deal with at Fresno State. And he has an elite coaching staff that can fill in any other deficiencies. He has shown that he can keep the players motivated in an extremely volatile situation. He has the team playing well together and everyone filling their roles. He has the NBA-caliber players (Hunter, Morris, Mitchell) buying in on not being a star and sharing minutes. And he is making decisions throughout the game that are leading to big wins. (Solid substitutions, keeping Rice coming off the bench, pressing to get a 10 second call, etc.).
If you look at Jerry Tarkanian, he put together some of the best teams ever at UNLV. He was pretty "meh" at Fresno State and even landed them on probation when he left.
Again, I'm not saying I would offer Terry the job today. I've been pretty clear about what I think he needs to do to secure the job. But I can see how his success this year may not be a "fluke" or guarantee that we will suck once "Beard's" players leave.