This is a pretty steep price to pay for moving to 9. I'd consider it depending on who's available. If one of the higher ranked guys falls, then I'd probably do it, but I wouldn't want to do it before the draft and end up with, say, Stanley Johnson. Assuming there's zero chance Towns, Okafor, or Russell is there, I'd do that trade if Mudiay, WCS, Winslow, Porzingis, or Hezonja is there (i.e. one team in the top 8 makes a surprising pick). Turner should be there at 9, and I might consider doing this trade to get him, but I'd probably try to see if I could give up less for 10 or 11.