I think both Oxley and Harden can help the team. Harden will have to work to get his spot back, as Davidson, Brown, and Boykin have all looked good, and with Harden you have to wonder about his health, and whether his shoulders will be able to take the hits. As for Oxley, he was the starter until suspended. He will be a force inside, and will make probably the strongest part of the team, the defensive line, even better.
I understand you like the defensive line-there's some pretty good players there who have not gotten hurt and have been consistent in their play. (BTW-I met Stafford Gatlings folks at Marshall-they were great!-really nice people)
However, the facts are that we are not very good at sacks-which I think-falls mostly on the defensive line and we are not real great against the run. Pass defense wise-if we can't get sacks and hurries, our defensive backfield is getting shredded because the QB has too much time. No sacks against BG illustrates my point.
We really haven't had a good pass rush lately. I'm with Monroe on this-we need some fast monster defensive ends recruited.