If its a question of possession how do they determine that that quickly without stopping play? They cant right? Maybe its just me as a fan but I dont mind the stopping to wait for replays to make sure a call is right. I even wish the coaches could have a "challenge" during the game minus the last 2 minutes when only the refs can look at it like football does. I know it kills momentum if a team is rolling but personally as a fan I dont mind it.