Murray made the All Defense Team two years ago, and then had to sit out all last season with an injury. He isn't back to where he was two years ago. Isn't that sort of the definition of what you just said, "hoping a guy gets back to playing well consistently"? Talking out of your ass is one thing - talking out of both sides of your ass is another. And don't lecture me about something I never said.
Beli was never that good, and he's not going to get better. Forbes was never that good, and he's not going to get better. Mills...maybe before the injury... but he was never that good since, and he's not going to get better. They aren't getting benched. And here's the thing... getting benched isn't making Murray better. Or Lonnie for that matter. That doesn't mean I think they are going to become All Stars. But if they are going to step up, it's going to happen with floor time.
I never even hinted at benching DDR and Aldridge. But Beli, Bryn, and Patty aren't part of a successful future here.
There are young players all over the league who are no better than Murray and Lonnie (or Keldon Johnson for that matter), who are getting serious minutes and improving from them. You seem to think that playing those guys will make the Spurs lose. They're 5-10 right now, and you're stuck in the past.