I do agree with getting a premium talent and fewer overall picks than camp fodder, but Delpit seems to be a guy whose play has been sliding on a stacked D. He seems more "ball-hawk" than "ball-hawk" and tackler. I'd rather trade-up for McKinney, Chinn or Dugger. Although, I'd be interested in LSU fan @Kirby Jackson opinion on Delpit.
I'd trade higher in the 2nd for a safety, or McKinney in the bottom 1st.