I'd Draft Adams or Dieng.
Defensive minded. Dieng has the jumpshot to go with it and the defensive instinct that every great rim protector needs. His defensive positioning and understanding of positioning and help are just amazing for a college level kid at his age.
Probably the most under rated role player in the top 20 in my opinion. He'll be a solid starting center one day. If he develops a serious post game then look out.