Substitute confusion

[BillyMac]

I appreciate those who gave their attention to this situation and offered detailed rule based interpretations, as well as those who explained why it was important to discuss such matters.

They're teenagers, they screw up all the time, no matter what level the game is. Sometimes the adult coach, or the adults at the table screw up. Yes, the officials should always be aware of how many players are on the court, but sometimes we screw up, and sometimes the number of players on the court, be it four, or six, is beyond our control and we need to know how to handle it properly, by the rulebook, and not interpret by flying by the seat of our pants.