Durant can't leave the thunder for the Spurs now, right?
The Spurs have a lot of old dudes, but they also have one of the five best players in the league, plus another top 15-20 guy, a great front office, and the best coach in the sport. I've got them with about $54 million in committed salaries for next year, plus West/Manu/Timmy who have about $8 million in player options between them. So they're going to have pretty much max cap space to head into the off-season.
People have been seemingly writing the Spurs off for close to a decade; of all times, this is the time to not do it. (So probably they're going to start not being all that good i guess)