I agree, we should trade down, early draft picks are expensive and rarely work out in the end. Certainly, the number of quarterbacks taken in the first round rarely work out.
We were talking about that the other day and one guy had a really good thought on why first round QBs don't pan out well. Consider the Chiefs at the moment, we suck so bad that any young QB we stick in the backfield will rarely get enough time to read the defenses and adjust as they should.
We need an offensive line before we go pick up any hot shot QBs.