Anytime a player goes down from a hit to the head/face area and they stay down long enough for the game to be stopped, that player must sit out until they are fully evaluated by an independent doctor to clear a concussion protocol.
My hope would be that we don't have to stop every 3, 4, 5 times because some player is faking, yeah, I said it, faking an injury trying to draw a flagrant foul. Lessens the integrity of the game and kills the flow. Not to mention adds at least 20 minutes to every game.