Seems like you are saying that it is best to sit and wait your turn. Wait till the better kids are recruited then they will sit so you can have a turn in garbage time. You are saying the kids that got cut from AA teams didn't improve a second team,that makes sense. They got cut and had no choice. I think the discussion is about kids that made the team and ride the pine. These are the kids that can move to a club knocking on the door of the elite and get equal time. Some of these clubs go to the same recruiting tournies and offer an opportunity to play In front of the same coaches, only you would be seen before the coaches go to another field.
There is a lot to consider at this age. Is he happy? Is he getting opportunities. Is he playing? If he is learning to be a role player to the set starters can he be a difference maker on another team. Is he allowed to and encouraged to create or is he handcuffed bc the O runs through the big 4 to win.