No argument there. And the same was true at Memphis / CUSA. No question, his record has been inflated by playing in weak leagues.
But that is different from his teams not being good, or him not being a good coach. Both of those conditions are true, which is why his teams excel most years. And part of that is enabled by playing in weak leagues. There is no doubt in my mind that if this current UK team played in the ACC or the Big 10, that they would have lost a game or two.
But that would still make them top 5. : /