This whole thread is strange.
He's a draft worthy prospect that doesn't play much summer ball, but is also about to miss his second season of HS ball and it looks like he's no longer progressing as a player?
I will say this. The top position players that are draft prospects, play on the summer circuit and hit 90+ consistently all summer. That is how they become draft prospects - since not enough guys in HS ball throw 90+ to confirm the talent.
I doubt this kid is a pro talent, but for my final thoughts. I don't think there is a problem with the US developmental system, I think there is a problem with this kid's home situation. I don't think any spring league would've helped. He either couldn't help himself or those around him failed him miserably.