I've read enough of his stats looking for a silver lining and I still haven't much found one, not on a 2 year term and 3 million dollars a year. The easy answer is "Dan Girardi is bad at hockey" which, compared to his pro-level peers, is correct. Sure, arguments for usage can be made, but I can't think of a situation where a guy has changed systems and had an improvement from his current level to right around the league average which in Dans case is a big, big gap. He already faces being outshot because of his defensive style and lack of offensive prowess, which that I don't fully hold against him. I think certain guys in certain defensive roles can succeed still. His heatmaps look bad, gives up too many opportunities overall on a team that needs more blueline speed and stability, and he gives up too many high danger shots for my tastes. I'd have almost preferred the Montreal approach to this, get two marginal guys for half his cost and run with it, play your hot hand. In this case, Dan is going to be too expensive to just waive, and too cheap to not keep him in managements eyes.
I could stomach this a lot better if it were a one year, but this... feh.