How do they explain the fact that Oliver received a notification at half time. If the seven cameras could not see it instantly which piece of equipment was able to see it after the event. It all comes down to who is the man in charge is it the ref or faceless men in a cabin. Oliver knew it had gone over the line but did not have the guts to stop the game, go to the monitor and, heaven forfend, do the job he is paid to do.