If the Bruins were 2-1 down rather than up, I reckon Pasta would be more likely to play. As it is, they may be a little more cautious.
The Bruins brought much better effort in the 2nd and 3rd periods last game and controlled a lot of the play, their special teams got the job done, defense was much tighter and Halak was very good, especially playing at short notice. But we still need to see better 5v5 offensive production, both to get this series done and especially if they plan on going much deeper in this tournament. Obviously Pasta will help with that, and I think the 2nd line is showing real promise and they should stick with it, but the bottom 6 is still very much up for discussion.
I'd be very tempted to roll out Studnicka with Coyle again. He's got such good hands, agility and already he reads the play well, and Carolina are not a team that will punish him physically, so his lack of weight may not hurt him here. I know Bjork struggled on the 1st line last game, but I think he's been fine on the 3rd and he should at least get a chance to return to 3LW and show his merit there once Pasta returns. Otherwise I'm not completely against Kuraly or even Wags getting more time on the 3rd, because Lindholm is a perfectly competent 4C so if either works there, it won't harm the 4th to shift them up. I see no place for Ritchie against the Canes, but he could be useful against the likes of Tampa. I would have said the Caps too, but they look done. Otherwise Frederic and Seny are of course in the mix, but it's hard to comment on them given they haven't played any hockey in months and we don't know how they're looking in practices. You'd have to at least remain open to trying them though, until we start to solidify a lineup that can score more consistently.