Yeah, those are the three fullback options and I think you are right about Campbell. QLD Country were obviously trying things for the Reds and had Petaia playing fullback for a few games before moving him to 13 and Jock moved back and was fine (I think he was better on the wing). I would've like Daugunu to get a run.
Agree totally on McGahan, although I have no line of vision on him. Can't recall seeing him play at all (although if he has played against the Reds as per the above clip, I would've).
I just think we have the makings of an excellent backline, particularly with Jimmy teaching attack and Ryan helping out with D.
9 McDermott / Sorovi (Tuttle injured)
10 Stewart
11 Daugunu
12 Paia'aua / Kerevi
13 Kerevi / Petaia / CFS
14 Petaia / Perese / CFS
And then fullback seems a bit of an issue with Toua, Campbell and McGahan.