Height isn't the only factor.
I know he's young, but right now he's getting beat on the lead and in contests. For a CHB to play 1-1 most of the game, the CHB needs to be able to win a lot of these situations on his own. That is the only way we will have the flexibility to let the loose player help Delaney most of the time.
Say we had Delaney at FB, Bruce as loose, and someone like Alex Rance at CHB - then I'd feel a whole lot better about the structure moving into the next few years.
Bruce needs time, he's only 21(?) and has played less than 20 games, in teams that have been completely destroyed more often than not. He doesn't look too bad as the tall flanker (in the Gilbert mould) but I think we gotta give him a bit more time to get used to playing on the oppositions talls.
Would be pretty handy having a 196cm CHB who can not only hold down a KPB position but also provide run out of the backline. No doubt he has a bit to work on, but that's what the next couple years are for!