The Bruins made the decision to not bring back longtime captain Zdeno Chara and instead give the younger defensemen a chance to earn a regular/larger role.
So far, these defensemen have stepped up.
Brandon Carlo: B's are plus-27 in shot attempts, plus-17 in shots and plus-3 in goals at even strength with Carlo on the ice. He's also been excellent on the penalty kill, where he's played 3:24 per game (second-most on the team).
Jeremy Lauzon: He leads the B's with 3:26 of PK time per game. Lauzon also is second in total ice time per game at 19:45, and the Bruins are plus-30 in shot attempts and plus-24 in shots on net at even strength with Lauzon on the ice. His offense is lacking a bit with three points in 14 games, but overall he's done well in a much larger role than last season.
Jakub Zboril: Similar to Lauzon, Zboril is not producing offensively with just two points in 14 games, but he's been a steady presence to far, and that's what the B's need from him on the third pairing. Nearly 65 percent of his even-strength zone starts are in the attacking end, but the ice is not being tilted the other way after he hops over the boards. The B's are controlling 55 percent of all even-strength shot attempts with Zboril on the ice.
Matt Grzelcyk: He's only played in six games, but he's looked good over that small sample size.
Charlie McAvoy: Don't be surprised if McAvoy finishes in the top five of Norris Trophy voting. He leads all B's defensemen with 11 points and plays nearly five minutes more per game than any of his fellow blueliners. Boston accounts for nearly 60 percent of all shot attempts and 56 percent of all scoring chances with McAvoy on the ice during even strength, and those are excellent numbers. He is an elite defenseman.