All depends on what you're expecting to get back in return really.
Also as much as potential is huge, where hes at in different categories is the key.
To me, if you wanna make the most for young talent, SM/SG is where your find it. Reason being its tough to find a great young player at those position's. Especially SG.
And just out of curiosity, what are you wanting in return for your young player? Like say hes 19, would u pick up a 25-27 yr old who might be slightly better with a crazy amount of money.
I know every team here has their own way of doing things, but us. We would hold on to that young player, especially if our starter now is getting up there in age. Figure on having him ready for the future of the team. Like if you look at my team, you can see our possible starters in the future of the team.
I try to set us up for the long term, plus also if we get an injury we dont lose much. I consider this the spurs way lol.