Durung the warm up before the match, Ryan seriously injured what seemed to be his ankle. My guess is Lazarus' shift to fullback was only a last minute decision by Sheens. With Sheens' past efforts to manufacture young Blake into a fullback, i think that was his reason for the re-shuffling.
Personally i would have liked Lazarus left in the halves and faith shown by his coach in his natural position and not left on the wing in defence, Tuqiri shifted to fullback with Fitzhenry left on the wing. These positional changes woulld have seen pretty much most players being able to play to their natural abilities and possibly a better result than last night.