between on ball defending and a secondary defender when it comes to a block/charge call. A secondary defender absolutely needs to be set before the player gathers and goes up for a shot. A primary defender only needs to have legal guarding position. He doesn't need to set his feet when a guy runs into him. Yet you have two former NBA coaches (one a former player) who have absolutely no idea when they are announcing the game. It is sad, pitiful and frustrating.