Sean Kuraly paced Boston's offensive charge with two goals, marking his first multi-goal output of the season. His first came just 1:12 into the contest and set the tone for the Black & Gold, who opened up a 6-point cushion on the Toronto Maple Leafs for second place in the Atlantic Division.
"He has to be one of the lead sled dogs, in terms of playing [north-style] hockey…he's definitely that guy," Cassidy said of Kuraly. "It's one of the reasons we went to that [fourth] line a lot to start games. If you can forecheck a team early and put them on their heels, you never know.
"That sometimes will get them thinking right away, 'Wow, it's gonna be one of those nights.' And if the next line follows it then off you go. So yes, he is a tempo setter for us."
The Bruins also got a goal from fellow bottom-sixer Noel Acciari at the 2:52 mark of the second period, before Kuraly - centering Danton Heinen and Chris Wagner on Boston's third line - struck again for his second of the night off a slick feed from Heinen with 3:43 remaining in the middle frame.
"All those issues about secondary scoring we addressed about a month ago seem to have sorted themselves out a little bit," said Cassidy.
"You never know when they're gonna go in," added Kuraly, who hadn't scored since Jan. 17. "I don't have a ton of goals. When they go in, you're always maybe a little surprised. It was a pleasant surprise, that's for sure."