Ravens need to draft the best LT, OLB, CB, or WR available with the first 3 picks in the draft, and then fill in the remaining gaps through free agency. Given Ozzie's track record, signing a good WR via free agency is probably the best course of action.
Of course, that means Ozzie will draft 2 DTs in the first 3 rounds or, since he likes to draft counter to the strength of a draft (i.e. Mosley in the arguably the best WR draft ever), he will take 2 OGs.