The closest thing to this are the two way contracts. They can only play a limited amount of NBA games, so usually you’ll put them in when you have rotation players get hurt or rest. Warriors did this heaps last year with Ty Jerome and Anthony Lamb. And this year you can have up to 3 two way contracts.

Not a chance

We’re going to see this post every time JP has a 40 point game this season. And they’ll be nowhere to be found when he drops 6 points on 2/21 from the field. Either way, he was never going to play the way he wanted on the Warriors, he clearly had fallen out with the coaches and half the players (even Curry).