You make a good point about the DT issue. As for the OL, I've said numerous times we need depth and talent. There is no getting around that and they need to address it this offseason, whether through the draft, free agency, or both. So far, they've signed one interior OL who projects to be a backup. If we're hanging on the words of McNally, then we believe that they're also looking for an upgrade at center, since MnNally himself has talked of Teague being tried at LT (from what other posts have said). That only makes sense, because although Teague improved in terms of line calls and shotgun snaps, he still looked way overmatched against bigger DTs when pass blocking and did not get a good push in the running game. Drafting a guy like Chris Spencer of Ole Miss or Jason Brown of North Carolina, two guys who are very strong in the interior, could help in terms of stopping bigger DTs, which are becoming more prevalent in the NFL nowadays.
Getting back to DT. If they decide to look at the available free agents (even after the June cap cuts) or make a trade, I could see it. As for the draft, this draft is not very strong in DTs. There's a couple good ones and the rest are average at best. I would take a flyer on a prospect like Lynn McGruder of Oklahoma, who is gifted athletically but considered a bit of an underachiever, and I wouldn't do that until after the 3rd round.
The water wasn't so cold.