I think they could but it's not like they really are in need of what he brings to the table. Especially when you've got guys like Crosby, Tavares, Getzlaff, Benn, even Toews as playmakers, Joe is big but he's a little slow and all Canada's centres are a lot more defensively sound IMO, and it wouldn't make too much sense to move him to the wing.
Giroux would've made it over him, he's much more of a game changer