12-U and up sounds pretty cut throat. Do players ever leave teams and come back, or once you’re gone from an organization you’re gone?
I've had many players leave my teams over the years mostly after the season ended. I would say that probably 75% of them tried to come back. Unfortunately for them, I had found replacements and didn't need them. I'm loyal to the players that are loyal to the team. In other words, If they want to stay the following year, they have a spot. Those that don't will get replaced at tryouts. Thus, few spots open up year to year and rarely did a former player fit the position needed in subsequent years that wanted to return.
For those that withdraw from the team or were asked to leave mid-season, I will not take back...period. If they withdrew and wouldn't honor their commitment then, why should I believe they will honor it in the following years they want to return to my team? If they were asked to leave, I don't even want to see them again. As for fees, they are paid in full for the year at the beginning of the season. If they are asked to leave or withdraw from the team on their own, there are zero refunds given. That gives them an incentive to stay for their commitment or at the least, force the parents/players to behave themselves so they won't be asked to leave the team.