Yes, he's a good defenceman, but I'd rather give up assets for a younger guy not obviously on the decline as he is. Would you give up assets if you we're in The Panthers position for Yandle? I understand they are not the same player, but the return for the player you are getting is the focus here. Surely you see that, not to mention that you have him(Gio) for another year after this, so it's not like he's just a pure rental/ Why would you give up much of ANYTHING for that?
It's a bad proposal from the start, and I see no reason why The Panthers or The Flames would be interested.