They've really rebuilt things at an accelerated pace everywhere but DL.
There are a couple of DTs out there that are still UT possibilities. And they do have commits from a DE and a DT currently.
DT recruiting is a bugaboo that has haunted UT since Haynesworth and Henderson left, and it's one of the greatest mysteries to me.
I think there's just a general lack of good DTs out there who are qualified. A lot of them don't qualify and go juco, so juco is a legitimate place to get them. Plus, the state of TN just doesn't produce them, and I think a lot of DTs are big mamas boys who like home cookin and don't want to go far from home. It's the toughest position to recruit.