The talk about Murray sounds an awful lot like the talk about Gill when the Pens got him. I think it's all about expectations. All the Pens need Murray to be is a tough third pairing D who will help improve the PK.
Same applies for Morrow. They don't need him to be a captain, they just need some complementary scoring and toughness. Again, it sounds kind of like Roberts and Guerin, who were both toiling on irrelevant teams. Coming to the Pens should bring something extra out of both of them.
Can't say enough, kudos to Shero. Anytime I start to doubt him he does something like this that proves that he still gets it. He identifies real needs and addresses them. He's not afraid to take some risks, but he doesn't take reckless ones. In the end, the Pens will be fine down the road without Joe Morrow and a few draft picks, just like trading Esposito, a first, Caputi, Welch, etc etc didn't sink them. They gathered up enough stock in D prospects and draft picks that allowed them to make these moves.