My first option would be to trade down but I'm not opposed to selecting him either. There might be a good chance that he's by far the best player available at 15. If the trade down options aren't good enough, I'd take him.
And I want to trade down more because of the depth of the draft, there should be plenty of good options available at 2nd round, and not sure there's that big difference between pick at 15 and early 20s (if there is, just take the guy.. OJ Howard arguably is that).
Only positions I'd completely rule out at 1st are QB and RB. I'm open to picking offensive player, though the preference is on D.