Starters

[johnnyrao]

I know the rule book says that the coach must designate the starters at least 10 minutes before game time. What rule says that the coach must start the five players designated in the book? I did a girls varsity game a few weeks ago where the players came on the court to start the game. As everyone was getting set to play the home coach looked at his players and then sent a player off the bench to switch with another player. His book keeper told him he had the wrong five starters on the court. We allowed the switch but at halftime concluded that we were not sure how to legally handle it. I can't find anything in the rule book. I can assume that we could assess a team technical, but I don't have a reference for it.

Also, when you check to see if the starters are designated do you remember the numbers? I don't so I would readily admit I would not know if the correct five came on the court. Also, if this is a team T would it be irrelevant once the ball became live to start the game?