Yeah, I kinda agree with that. As I said earlier in this thread, I think Barba's ball playing is very limited, it's just that he's able to create opportunities with his speed.
If he plays in the halves, I don't think his game would change much (minus the lack of kick returns, and plus defending in the front line). He'd still mostly be a support player. The problem would be that he'd take the place of a genuine ball player, and be replaced with Hoffman.
It's the safe option in terms of experience, but I think it's wrong. Storm wouldn't put Slater in the halves if Cronk left, Manly wouldn't put Stewart there if DCE/Foran left, and Souffs wouldn't put Inglis there if Reynolds was gone either.
They'd probably try out a bunch of different rookies and hope to find one that works. We'd probably put Gillett in the halves again rather than trying the same thing as other clubs.