it's not a centre's job to make metres. Especially with Fusitua at the back, and two extra forwards on the wing.
Anyone notice how our right edge gets targetted again and again and again on defence? Our right edge routinely makes 2-3 times as many tackles as our left.
I wonder if it's a deliberate ploy to target Shaun Johnson to tire him out, or whether it's the fact other teams like to attack on their left, or alternately, if they view our right as a weakness.
The right side defense nearly always have more traffic come their way simply because the majority of players are right handed, which is why left wing is historically the most prolific try scoring position in the game.