Thing at the Reds is you’re only an injury or two away from needing a complete reshuffle anyway, they were fortunate in 2021 with injuries but wont always be the case. With Henry, Flook, Paisami, Petaia and Stewart, i think they have better depth in the centre’s then they do at fullback. At 15 Jock is the only Super Rugby standard one, Grealy looks promising but there‘s noone else at this stage.
I think Petaia can be a star wherever he plays, I’m interested to see how he goes at 15 just because i haven't seen it, my only concern is his confidence and communication. I dont know the guy but he comes across as quiet and frustrated with himself, a good 15 needs to be barking orders and directing from the back.