matter is that in football they don't use video iteration when hesitate over some case on the pitch. This is agreat lack because the pitch in football is over 100 meters long and 70 meters wide - human sight can't be so precise and capable as to see everything in details but it must do it. So, using video iteration for chief referees is vital I guess.
Another aspect is lines referees. You know what football off-side is. The most widespread referee mistakes lie right here though. It's hard to count the number of goals scored from off-sides and the number of beautiful combinations stopped by line referee's mistakenly lifted flag...bloodcurdling sight. I wish that lines referees are eliminated from football forever given the great percentage of mistakes they perform per match. INstaed of human linesmen special ray detectors must be installed along the pitch. These ones are invented already.
I hope you've keenly felt through my desire to improve football and exclude unreliable human