I don;t think Ottens will be that big a loss. He's not played outstanding footy for a while. Menzel won't play much, if at all next year. That's a bigger loss.
They still have one of the Ablett compo picks to use. I think they can regenerate.
I'd be looking for a BP to ease Hunt out over the next year, and giving Duncan more mid time with Chapman more up forward, maybe.
Perhaps also use Vardy as a KPF for Pods
Didn't watch the QF? Ottens would definitely be a big loss.