The Bruins (and specifically Claude) were forced to suddenly find what's become an ace-in-the-hole in these young puck-moving D-men such as Krug and Bartkowski. Makes me believe that Ference won't be coming back for a while. When Sidenberg comes back suddenly the Bruins have 3 cohesive D-man pairs.
The Rangers also can't deal with the Bruins forward depth now that Lucic is finally playing with his head out of his ass giving that extra dimension to Krejci & Horton. Bergeron and Marchand also seem to have gotten healthier since being banged-up at the end of the season.