Said all along Manly's Achilles Heel at present is their outside backs.
Their defence has been for the most part OK. But since half time in Round 6 when Turbo didn't return to the field and Walker has been missing, only 2 tries out of 15 scored since then, have come from players outside 5/8, and those two were in Round 7 (one by Funa).
The attack in the three quarters and full back positions has almost stalled. The forwards and halves are scoring all the tries, to cover for the deficiency. They try hard and they make ground, but other teams seem to be able to keep them in check.
Though there is a risk with Walker at full back, he must come into a position where he can spark the backline, and that means centre or full back, until Turbo returns. And I wonder if its not wise to hold Turbo back for as long as possible, to ensure his hamstring is fully repaired.