If Onitoni moves through the pathways as a fullback all the way up to cup then you’d have to assume that Jahream probably moves to centre to accomodate, which to be fair is his junior position. I’m starting to notice a trend that a lot of juniors want that fullback position for some reason (maybe money) but there’s not doubt Large will flourish there.
As for Heamasi Makasini I can’t say I see him as a wing nor would the club judging by his performances this year. The likely reasoning for that position is just to fit him in as they had to drop Xavier Tauaifuaiga so I wouldn’t read too deeply in it. It’s a clear sign that these boys are hopefully in for the ride.