Jones brought some talent in. That wasn't his main problem. His problem was that he was an imbecile on gameday and couldn't develop players once he got them. The worst thing though is that he was a very poor leader and terrible manager of the players.
I think the Hurd drama revealed exactly who Jones was as a leader and coach. Lots of people blame Hurd but he literally could have gone anywhere. He helped recruit his class. He bled orange. He was everything you could want in a recruit. In just a few years, he couldn't get away from Jones and UT fast enough. He WAS lied to by Jones to keep him from transferring earlier. His "blow up" was the end of a long line of Jones' incompetence.