Should be like rugby union - go to video ref. But only for disputable goals/penalties/straight red cards. It is up to the ref whether he wants to use the video ref. Goal line stuff should be sorted by technology. End of. No reason why not in this day and age. If we had a video ref then diving for penalties would probably be reduced - which certainly is a good thing. The referee needs to be respected more - the surrounding of the ref after every tackle and continuous moaning should be removed from the game.