The Bruins' old but new line combinations paid off on what turned to be the eventual winner as Haula notched his first of the series when he redirected a Charlie McAvoy feed by Raanta 7:08 of the third. Haula's goal put Boston ahead, 3-1, and came just under four minutes after Carolina had halved the B's lead on a marker from Andrei Svechnikov.
"Haula's goal, puck recovery, work to get a puck back, it gets moved around, low to high, presenting yourself in the slot," said Cassidy. "Haula had a good tip in the second period that we almost scored on. Some goals like that, not just a 2-on-1 or a 3-on-2, when the game opens up a bit, those tight-checking games. You've got to be able to do that, work to get a puck back, create a turnover on the forecheck, hang onto it, support each other. That's playoff hockey.
"So, they recognized it and they came through tonight in that regard. Had some looks earlier in the series, we just didn't finish. That's part of it, right? When you finish better, things get glossed over. Tonight, we finished better and that's what we needed. Eventually you need some guys to step up and score.
"I'm glad they scored that way. It'll make them feel better about their game and build their confidence so they can do it again on Saturday."
Boston added another insurance marker just 3:35 later when Derek Forbort capped off a monster shift from the B's fourth line with a wrister that sailed through traffic and a Lazar screen to give the Black & Gold a 4-1 lead. It was Forbort's first goal since a two-goal showing in Philadelphia on Nov. 20.
"He's really stepped up," said Cassidy. "It's been a series where we've been killing a lot of penalties…he's been excellent in shooting lanes. Clears were real good…I liked Derek's game, he's been really good with Cliffy. They've solidified themselves as a pair, that's why they predominantly stayed in. I think they're playing to their strengths, they're keeping it simple with their puck movement and they're physical.
"They've each scored a goal in the last two games, which is a nice bonus. But defending well against whatever line they're assigned against. Tonight, it was [Jordan] Staal's line - they're a big line, they've been doing a lot of scoring for them. So, credit to them."