Heinen did just that on Wednesday night, contributing on two of Boston's six goals. He picked up an assist on Marchand's first-period tally, before providing a screen - along with Bergeron - on Zdeno Chara's eventual winning blast from the point early in the third.
"Obviously me and March have played with Danton for many games this year," said Bergeron. "We're used to him, but I definitely think that simplifying and bringing the puck on net, being hard on the forecheck, it just makes it easier…we all know what's gonna happen, and after that you can start making plays."
Cassidy's changes also benefitted both power-play units, which garnered a goal apiece. Johansson took the place of Jake DeBrusk on the top unit, with DeBrusk shifting down to the second with Charlie McAvoy and Matt Grzelcyk manning the points.
McAvoy struck for the game's opening goal on the man advantage at 3:03 of the first, finishing off the Comm. Ave. connection, with assists going to fellow Boston University alums Charlie Coyle and Grzelcyk.
"Well, our second unit was able to play," said Cassidy. "We were first-unit dominant most of the season. Now we've got the second unit pitching in. We have a few ideas with Toronto, we've seen them now quite a bit over the last year, so there's certain plays we look for."
In the end, the tweaks paid dividends throughout the lineup, especially for Boston's leading men.
"They take pride on that - both ends of the ice. They want to be difference makers and today they were," Tuukka Rask said of Bergeron, Marchand, and Pastrnak. "It boosts everybody's confidence."