At what point are you messing with the chemistry of a back to back Stanley Cup champion team? We have already lost several guys, although I would say somewhat positive attrition, but it is still a big change to the locker room. I think they need to be careful of how far they can push that.
I wouldn't personally worry about it. When a team loses a guy, they gain a guy. Who is to say Ryan Reaves doesn't have a bigger impact on the room than Chris Kunitz? He very well may. We add character to this team.
I just don't think Hagelin's salary is a proper allocation of resources on this team. Rust will be taking over for him in the coming year, as Rust will be making as much as him. If he aids us in getting better - whether that's by bringing in a top 6 winger, a 3C or a top 4 defenseman...I'm completely fine and comfortable with that.
In regards to Sheary - judging by what I'm reading, Sheary's arbitration has a good possibility of going our way. If that's the truth, I'd try to sign him to a 2-3 year deal, and I'd also flip him. Sheary is a good hockey player, but I don't see how he fits here. He cannot play with Sid when the going gets tough.