I would stay at DT if I were you. I play defensive end for my highschool, and usually you have to be taller to play that. DB is def. out of the question. If you're smart on the field and can be a big impact tackler on defense, LB maybe, but you would really have to go all out. Other than that, OL, but thats no fun honestly. I would really just stick to DT if i were you. Good luck to you.