I think Buffalo fans still think Cozens can be a useful player over the length of his contract. He has size and speed and has shown the ability to play well at C over the course of a full season, even though he wasn't great defensively that year.
It's hard to understand what is going on with him, because he hasn't been playing with the same fire we saw from him when he first came into the league. Some think hockey IQ is the problem, but I think it's more about confidence. He just seems tentative to me. Like he's thinking too much.
I do think he will figure it out though. The question is whether that's at C or W.
The Sabres have not done him any favors by playing him at C with tough matchups and usually with 2 other kids on his wings. He has looked better with vets like Tuch next to him, and has at times looked better at W, but not dramatically so.
Sabres fans are willing to trade him in a hockey trade simply because something needs to be changed, but I wouldn't call it desperation to ship him out. If we weren't dealing with a long playoff drought, I think there'd be a lot more patience to let him develop and it would eventually work out.