The thing about Matheson is that, while he may be overpaid and on far too long a deal (nice one, Tallon) the thing about Matheson is that in the right system he can be pretty damn good. Like, after a year adjusting in Pittsburgh, he the single best "playmaking" dman we had. Average offensively, but man I lost count of the number of times he took the puck in the O-zone, turned on his pretty astounding skating ability, and kind of slashed his way through the other team to create a high danger chance.
I'm just saying, people think he's a cap dump. But if the Pens were not loaded up on the left side with Dumoulin/Pettersson/Matheson, I wouldn't even consider parting with him given the year he just had.
But if the Pens are going to trim any cap off their current team, that's the place to cut it. And if that means we lose a more valued D-man, i'd be willing if it means using that money elsewhere.