Teens want to be competitive until they are told otherwise. I played multiple sports as a youth and when you are told to hold back you do so. If we didn't do as we were told it would result in a full 2hr practice of suicides in soccer and basketball and laps in baseball. The only sport I played that a coach never said to hold back was football, because we were bad enough as it was. Did we like holding back, heck no, we wanted to beat the bejesus out of everyone but the coaches had their reason and we listened. It's just like in a hockey tournament where game 3 don't matter because the championship game is a lock against the same team, do you start the better goalie? No, you start the weaker goalie and mix up the lines a little, you don't show your best hand and surprise them in the championship game. My sons bantam team did just that twice and it worked perfectly, lost game 3 7-2 then won the championship game 3-1 in the one tournament and lost 5-2 and won the championship game 2-0 in the other. The parity pretty much meant nothing so why show your best hand, wait until it matters.