I can't find the post now where someone wrote that Marchy and Pasta seem angry or upset about something, but I agree with it. Pasta I think might mostly be cross with himself. I'm not suggesting that he's playing bad, far from it, but he holds himself to a high standard and there is something about his play or his fitness that seems to be bothering him a little bit. Nothing to back that up, just my impression.
Marchand though really seems to be frustrated about something with the wider team. Apart from the obvious in terms of not getting many wins of late and their ongoing issues holding on to leads, it's not clear precisely what's bugging him, and whether it's more linked to the way the Bs are playing or is more of a cultural/room thing. Don't think it's a big deal, but there is something interesting bubbling away there.