The TV screen is only when the ref is going to look, or to signal the decision has been made/altered by VAR.
There is no "I am waiting for the voices inside my head" signal - though much clearer pointing at the headset seems to be the best move.
IMHO - and I have to comment on the VAR - the VAR at the end wasn't so bad.
- Matic should have got a yellow for delaying the restart. The DFK was against his team. The ref didn't need VAR for that so why not YC, why get into the waiting for the review. Not so good but I am also happy if the VAR decides no card. Still, weird but not a biggie.
- The off the ball review - excellent. YC great call. Though the VAR could have probably saved us 90 secs and just said to the ref "YC for 8" and it would have been fine.
- There was also a penalty shout where the CR defender missed the ball but it looked to me like the Serb attacker planted his foot early and tripped himself. It was messy, but again I was happy with that.
So, and here's my big positive for VAR... my spidey sense tells me that the players know VAR is watching and it means much less off the ball stuff, we haven't seen an excessive force yet, much less dissent I think than I expected and probably a bit less action at corners (though the CR guys trod a fine line today). And I think that is great for the game. I do think the same result could be achieved by post match review of any incidents unseen at the time. Post match review with the proper power to sanction would be brilliant at the top level IMHO and wouldn't give us this - will this foul get reviewed but not that one situation we have with VAR.
Still, well done Serbia. Campbell had his moments but CR will struggle to get a point based on this.