The bench depends on the starting 13, but with only 8 interchanges and plenty of versatility in our pack, we only need 2 middle forwards and one edge forward. We need to be able to cover an injury in the halves, which Averillo can do if he starts at fullback, but not if he's starting 5/8. Ideally, we also want cover for the outside backs and dummy half.
Unfortunately we just don't have the ideal players to cover everything. I'd love it if Wakeham can become a decent first grader, play a bit of hooker, and cover the utility sub role. With fingers crossed for that, my bench would be:
Wakeham
Atoni
Napa
Waddell
My starting team would include Hetherington, Thompson, Elliott, RFM and Jackson in the forwards, and Averillo at 5/8. Averillo can cover an injury to an outside back. I wouldn't consider Katoa for a spot in the 17 unless we have lots of injuries.