Steen was recalled from Providence before the game - along with Jack Studnicka - with both Nick Foligno (upper-body) and Craig Smith (undisclosed) unable to play. The 23-year-old, playing in just his fourth NHL game and first this season, showed promise alongside DeBrusk and Erik Haula and picked up his first career point with his helper on DeBrusk's second-period marker.
"The puck was following him tonight," Cassidy said of Steen, who registered one shot on goal in 10:40 of ice time. "He's got to learn to shoot the puck coming off the wing. He did once late in the period, but other times he had opportunities. He's deferring, we talked about that. The young guys, at some point, got to attack the net and be selfish when the pucks on their stick in terms of getting it to the net and he'll have to go through that. He worked hard; he was in good spots."
Studnicka, meanwhile, played 11:10 and centered Trent Frederic and Karson Kuhlman on Boston's fourth line.
"Studs, I didn't notice him as much, so probably was good defensively if that's the case," said Cassidy. "Offensively, I don't know if their line - I think Kuhly had a few good rushes there, so he made a few plays. We'll look at it. I think they came up and did their job."