My issue with the Pasta negotiation is that it sounds like they're being pushed to the point where they are sacrificing their culture.
Chara, Marchand, Bergeron... they all sacrificed for the greater good, to win. If reports are to be believed, Pasta, who "doesn't play hockey for money," is pushing the Bruins to a place they don't want go. I assume that means it's a number that doesn't jive with the greater good.
Also, as the article states, the best weapon in a negotiation is the willingness to walk away. If the Bruins don't have a point at which they'll walk away, then they're going to get put over a barrel.
I know we all love Pasta, but signing him could mean breaking the culture that legends like Bergeron have built. That gives me pause.