Sorry to dissappoint Mr G., but Coach A was informed he had no remaining TOs...it is his job to pass that information on to the players. I grant the TO request and assess the T for the excessive TO. To be blunt about it, Mr G. knew the game situation and decided to put team B at a substantial disadvantage by choosing to ignore the rules.
The decision may have cost team B the game and definetly cost them the opportunity to win in regulation. The only reason I say it may have cost B the game is because while your defense may be able to stiffle B's hotshot during a live ball, their best FT shooter can overcome the defense with a couple of clutch shots and team B did have the opportunity to make adjustments during the game.
Seems to remember an NCAA Tourny game decided by this same thing.