Everyone is replaceable! Any " talented" kid that wants to leave will be replaced with another talented kid. Hard work and a good attitude is more important than than "talented" kids leaving. This team will win with or without the kids who so called...chose to leave.
The truth is most of the parents who are leaving already know that their kids are not going to make the team next year. No big deal. Find a team where your kid will play and actually contribute. Good luck!