I also think Kristian Welch is going to be really good. And I see him possibly as a DE. He looks like Aj Edds physically but in today's game he may have to put his hand on the ground and gain some weight.
I have heard very little talk about Alaric Jackson on the OL. Was very impressed with him as a recruit and Iowa had a tough time battle with some good programs IIRC.
I hope Welch bulks up to DE, because I don't see him being an effective LB. Watching his highlight tape, he looked very slow laterally and didn't show much range. He obviously is a good athlete and has very good straight-line speed for his size, just don't think he fits that Kirksey/Nieman/Edds mold.