4. Lonnie Walker
Lonnie Walker went on a tear starting in February averaging 21.7 points on 40% shooting from three over a seven-game stretch. His play has reignited hope that he can finally live up to his undeniable talent. Nevertheless, it's anyone's guess whether he's actually turned the corner or is just on an extended hot streak. If this is who he really is going forward, then that's obviously huge for San Antonio.
Walker could enter restricted free agency this summer and have several suitors given his recent play. Spurs fans shouldn't freak out, though. They're still in the driver's seat to retain him. Despite that, the chances of him receiving an offer that the Spurs might think twice about matching definitely feels higher.
San Antonio has significant cap space and few realistic options to spend it on. However, if this performance from Walker isn't sustainable, then they may still have to overpay to keep from losing him for nothing. Of course, he could keep it up, and the Spurs could re-sign him to a bargain deal.
It's crazy to think that Walker's future with the team could come down to the final 15 games of the season, but it pretty much could.