It's sure that you never know but you had too look at the most realistic case. I don't think Spurs will be able to get someone who will help them as soon as nest year at #37.
Danny Green seems to be the player with the biggest chance to help Spurs next year. However, is he a that interesting prospect ? Spurs have worked with Hairston for one year, is Green more interesting than him ?
To me, the answer won't come from the draft. If Spurs want to have a good team next year, it will be via trade and FA. I won't be upset if Spurs trade their #37 pick or draft and stash an international player.