"Purple" or "Blue"

I get your point Billy but there is a difference between what the rulebook allows and what actually happens during typical game. (Slight exaggeration added below).

Originally Posted by BillyMac

Notifying the captains when play is about to begin at the start of the game.

Literally no one has ever done this.

Originally Posted by BillyMac

The captain is the representative of his/her team and may address an official on matters of interpretation or to obtain essential information, if it is done in a courteous manner.

I'll let any player address me if done in a courteous manner.

Originally Posted by BillyMac

A captain may request a defensive match-up if three or more substitutes from the same team enter during an opportunity to substitute.

No player has ever asked for this.

Originally Posted by BillyMac

The free throw(s) awarded because of a personal foul shall be attempted by the offended player. If such player must withdraw because of an injury or disqualification, his/her substitute shall attempt the throw(s) unless no substitute is available, in which case any teammate may attempt the throw(s) as selected by the team captain or head coach.

Head coach always chooses.

Originally Posted by BillyMac

The free throws awarded because of a technical foul may be attempted by any player of the offended team, including an eligible substitute or designated starter. The coach or captain shall designate the free thrower(s).

Head coach always chooses.