I don't believe in quitting, and always say that to my kids. I
have a problem with the sense of entitlement today, but with that being said this is a completely different story. If you want to bring someone into the tryouts every year to compete with my son, I have no problem with that and agree they have to learn to compete. In this case my son made the team, and we paid the fee to be part of a team of 23 players. Now each week a different kid comes in and takes playing time from the rest of the kids. I don't think that is doing the right thing by your players and in the long run is bad business.