I have had a look over the past week on how I would structure my side and have gone with a structure that I used last year. Basically half side locked in, with the hope that 1 or 2 others push for that lock status. This stage have gone with set and forget Ruck, as I always figure its easier down grade if required.
Fyfe is the only one that may sneak in at this stage into my side.
Rookies are just a guessing game.