We've seen the good side and the bad side of VAR tonight with the offside and the penalty. There needs to be some sort of margin of error for linesmen, say if there decision is wrong but within 25mm of being right, the original decision stands. Offsides which don't even look offside to the naked out with a line drawn in ruin the game. Nobody wanted VAR for that and you haven't exactly gained an advantage if your toenail is offside. I know you're either offside or not but the A in VAR suggests the system is to assist the referee, not take over.