HappyDaddy: All it means is that the club has an "open training" policy in which any player from any club can practice with any team. It's simply an expansion of what a lot of clubs do where they open up all of their practices to any player within a club. In terms of how CESA does it, typically the outside player goes through training like any other player. If there's a scrimmage with another team, the coach makes a decision whether to play the outside kid or not depending on the circumstances -- but for internal scrimmages the kid typically plays.
