Don't discount the smarts of the players. These boys have been playing town and travel for a few years now. They know what town players live in. They play them in PAL games. some play on the same travel teams. They also know how old the boys are based on seeing them on fields and which grades they play with (PAL has always been age based). The lax world gets smaller as the boys get older. Cheating teams and players will start to be called out much more often. And let's not forget -- it's the parents who drive the boys to the tournament-- not the coaches.
The coaches organize the out of town kids together and got each one of them to participate. Some parents don't know what is going on behind the scenes. So while they drive their kids to a town tourney, they're thinking the town kids will be on the team, and not out of towners.
