One of the biggest interests for me in his game will be Mann and Centre and will the right hand defense issues be solved.
I suspect WT were aiming plenty of their attack down that side, but now with Mann at right centre it may just stifle their attacking forays.
The bench is sorted and the team selections are smart. The contingencies are their just in case either Widdop or Dugan cannot complete the game ie:
Widdop down: Mann to 5/8 and Milne to right centre.
Dugan down: Nighty to fullback and Milne to left wing, or (don't like this option but..) Nighty to fullback, Mann to left wing and Milne to right centre.
Both down: disaster really but can be, Nighty fullback, Mann 5/8, Milne wing and Thommo centre. Sims to edge forward. However, I don't think our medical team would clear Widdop and Dugan or even Friz if they weren't confident they could see out the game, but who knows, game stress is different than just being on the training paddock.