If he lets Jackson Hastings get away with being 5 yards offside on every last tackle like he did in the semi our kicking game will struggle.
The other thing I noticed from the semi is how many "warnings" Wigan got without being penalised. Every ptb all I could hear was
"Liam not square"
"Willie you're off" etc etc etc
Whilst the offending players didn't get involved and so didn't concede penalties - they still cut down the space all night