I'm not completely convinced in the way that Arrow is being used off the bench. For me, Arrow is not an impact player, so the minimal amount of minutes he is receiving makes no sense at all, and in the end, gives the impression that he is not providing much.
A lot of Arrows good work goes unnoticed, and with the few minutes he is getting, we're completely under utilising his abilities. He needs a lot more minutes to be effective. In my opinion, we should be using Arrow as a direct substitute for Blair. When Blair comes off, Arrow should go on, and when Arrow goes off, Blair should go back on.
We should make Arrow learn off Blair and have him playing like a Blair clone. If they can both play similar roles, then we'll be better across certain parts of the match, because as soon as Blair comes off, it's noticeable that we lack the little finer details that he provides.
Arrow can do the one-percenter's, apply kick pressure, control the ruck, defensively keep us tight through the middle, and can create a bit of second phase. Neither Blair or Arrow will be prolific metre eaters, but they don't have to be. Their strengths both lie in other areas, and I think Arrow can replicate what Blair provides for us, which would mean we can have someone doing the dirty work for the best part of 80 mins.