He's bought into this core with him as a part of the core playing on the first line. I'm unconvinced he's bought in to this core to be a seat warmer for Kotkaniemi in the top 6 until he loses that role and becomes a permanent shutdown 3C.
That's not me judging him as a self centered person, that's just my view of things when he's been very clear about wanting to be a legitimate two way forward in a top 6, not just a shutdown guy. The money and role is probalby not there in Montreal in the long term, and if that's what he wants (and that's perfectly reasonable to want it), he's probably going to end up elsewhere.