The good news, Cassidy said, is that neither winger is expected to come in and be a savior. Kase and Ritchie - both of whom are expected to see time on the B's second power-play unit - were acquired to be complementary pieces around the core that helped Boston to the Stanley Cup Final last spring.
"When you make these deals, they're complementary players, in terms of we don't expect them to go in and lead our team so to speak," said Cassidy. "It's great if they go out and they're the best player on the ice tonight, but in general we know the guys that have to drive this team, it's guys down the middle of the ice.
"These guys have to go in and fit in, play Bruins hockey, play to the best of their ability and we'll see where they best fit."
With Ritchie playing on Krejci's left, Jake DeBrusk is shifting to a line with Charlie Coyle and Anders Bjork, a trio that has looked solid in limited time together. Cassidy also felt it was time to split up Krejci and DeBrusk, whose chemistry had seemed to cool of late.
"Jake and Krech haven't been as effective as they were earlier, so putting [DeBrusk] with Coyle isn't a bad thing. They've had some chemistry, so we'll see where it goes," said Cassidy. "I just think with Coyle, Jake has done OK with him in the past and I think Bjork was on that wing. When [Kasron] Kuhlman goes in, it's an easy switch back.
"When you have new bodies, you've got to try things. That's, more than anything, what we're trying to do right now, see what fits best together without getting too far away from the plan."
