I feel like in order to really get to that next level we need a quality crafty hooker, Arthur appears to be that player. D looks solid. But let's be honest, hard to beat Crossy in that regard.
Given our lack of quality forwards maybe we would do better with Crosslands profile? But in reality I think its quite likely that we'll see a marked improvement in the offensive play with Arthur, and better overall results particularly in defence due to those advantages, despite the fact that yes, Crossland is objectively the better defender.