Why not limit the roster size for these teams? or is that already done. Does that not ulitmately limit the number of substitutions where you wouldn't have these whole team substitutions. Yes, teams will still runup the score but you can't control some of those jerks. I believe that endurance is a big part of soccer. You actually get to see the heart of a player as they dig for that last drop of energy in the final minutes. In additiion. Soccer is about building a team not just one player. However, if just anyone can participate even with substandard skills the respect "in terms of soccer" will be lacking. Thus, building your "team" will be limited by these perceptions. By this age the kids are playing for the honor of representing their school. Does it not reduce the prestige/honor if anyone can participate?