I have posted this tought before on tryouts. There are no spots open on any of the black teams unless a player decides to leave, all new tryout players as well as purple team players are gunning to take someone's position. So in effect they are competing against existing players. Here is where parents get funny. First parents have parent goggles on, that aside it is hard to get a good sense of a player purely from a tryout. A kid can light it up on all the skill drill stations then get to scrimmage and never touch ball. You also have many kids who may not skill drill well but put them in a real game and they become beasts. And I see kids that practice and drill well, dissappear come game time. Existing players are known quantities, tryout kids are a gamble so unless someone is just head and shoulders above, its barely worth the risk of a mild upgrade that may not work out. Parents of the kids are a known quantity as well so the risk is also there picking up nightmare parents. So to sum it up, there will always be room for stud players on any team and any club for that matter, marginal upgrades will likely be passed on because they are a risk and they dont want to upset team by showing no loyalty to players.