My bad, all I remember reading was something Real related about VAR...
To me there are two or three key topics that should be discussed and later improved. The first one is the time that it takes, it is too long, perhaps the moment the assistant starts telling the head ref about the situation, the head ref should immediately go to the screen, instead of standing and listening to the assisstant for a minute or two and then rushing to see the replay.
Another one - nobody`s sure who`s in charge of a game, the head ref or the VAR? They said that the ref can ask and use VAR in 4 cases before the last Serie A season started, but during the campaign we saw that it was not like that - it was VAR that alarms the ref about a situation and asks/tells him to watch the replay and change his decision,
that is not how an assisstant works, that`s how a boss operates - telling his employers what to do or re-do. It`s ok either way, but if VAR is superior, they should admit and declare it.
The most annoying thing is players/coaches gestures, showing the ref to see VAR because they dont agree with a decision he made. I hate it when everyone starts jumping around and draws imaginary TV screens with his fingers in the air. That gesture should be punishable the same way as when a player makes a gesture to the ref to show a card to someone.
It still needs some work, and also human error cannot be eliminated, but I feel VAR was more positive than negative, it was useful in numerous situations..