Bruins staying mostly intact during quiet offseason

After the NHL Draft, free agency and other offseason moves, NHL.com is taking a look at where each team stands. Today, the Boston Bruins:
It's been a quiet offseason for the Boston Bruins after they made the Stanley Cup Playoffs for the first time since 2013-14. The Bruins failed to make the playoffs the prior two seasons after clinching a berth in seven straight from 2007-14, which included winning the Stanley Cup in 2011.

Boston fired longtime coach Claude Julien on Feb. 7 and replaced him with Bruce Cassidy, who had the interim tag removed April 26 following the Bruins' six-game loss to the Ottawa Senators in the Eastern Conference First Round. Cassidy was retained widely because of his ability to turn the Bruins' season around -- they finished last season 18-8-1 -- but now he'll be tasked with making them a contender again.
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Cassidy will have to do that with almost the same lineup from last season with the Bruins opting not to sign anyone so far in free agency. Their main objective is signing restricted free agent forward David Pastrnak to a long-term contract. Pastrnak set an NHL career high with 70 points (34 goals, 36 assists) in 75 games last season and will be key for Boston's championship aspirations.
Here is what the Bruins look like today:

Key arrival

Charlie McAvoy, D:The Bruins' first-round pick (No. 14) in the 2016 NHL Draft, McAvoy actually isn't a new arrival, but Boston didn't have him during the 2016-17 regular season. McAvoy signed a three-year, entry-level contract with the Bruins on April 10 and made his NHL debut in the 2017 playoffs. He was thrown into the fire, averaging 26:12 of ice time in six postseason games. This season, he's expected to play in the top four defenseman group as a 19-year-old.

Key departures

Colin Miller, D:The Bruins lost Miller to the Vegas Golden Knights in the NHL Expansion Draft. The 24-year-old developed into a promising two-way defenseman the past two seasons, scoring 29 points (nine goals, 20 assists) in 103 games. … Dominic Moore, C:The 36-year-old primarily was Boston's fourth-line center last season, when he had 25 points (11 goals, 14 assists) in 82 regular-season games and one assist in six playoff games. … Drew Stafford](https://www.nhl.com/player/drew-stafford-8471226), F: The Bruins acquired Stafford in a trade from the Winnipeg Jets on March 1 prior to the NHL Trade Deadline. The 31-year-old had eight points (four goals, four assists) and a plus-8 rating in 18 regular-season games with Boston, and two goals in six playoff games. Stafford is an unrestricted free agent and has yet to sign a contract for this season.

On the cusp

Anders Bjork, F: A fifth-round pick (No. 146) by the Bruins in the 2014 NHL Draft, Bjork signed his entry-level contract on May 30. The 20-year-old had 52 points (21 goals, 31 assists) in 39 games as a junior at the University of Notre Dame last season and played five games for the United States at the 2017 IIHF World Championship. Bjork is expected to compete for a spot in Boston's bottom-six forward group. … Jakob Forsbacka Karlsson, F: Dubbed JFK, Forsbacka Karlsson was selected by the Bruins in the second round (No. 45) of the 2015 NHL Draft. He signed his entry-level contract on April 2 and made his NHL debut against the Washington Capitals on April 8. Like Bjork, Forsbacka Karlsson has a shot to land a bottom-six role out of training camp. … Matt Grzelcyk, D: A former captain at Boston University, Grzelcyk was taken by the Bruins in the third round (No. 85) of the 2012 NHL Draft. He had 32 points (six goals, 26 assists) in 70 games for Providence of the American Hockey League last season and could be brought up to fill a need on the left side if there's an injury.

What they still need

Center depth, backup goaltender. Behind Patrice Bergeron, the Bruins are lacking down the middle. Center David Krejci, 31, is coming off an impressive season with 54 points (23 goals, 31 assists) in 82 games but is an injury liability who missed 65 games the previous two seasons. Third-line center Ryan Spooner regressed last season (39 points in 78 games) after setting an NHL career high with 49 points (13 goals, 36 assists) in 80 games in 2015-16. If Krejci is injured and Spooner is inconsistent, Boston will be hard-pressed to find a center who could step into a top-six role. The Bruins could dive into the scarce UFA pool or opt to find help in a trade. ... No. 1 goalie Tuukka Rask is 30 and has played at least 64 games in each of the past three seasons. Last season, backup Anton Khudobin played 16 games and was ineffective (2.64 goals-against average, .904 save percentage). The Bruins need to give Rask some relief this season, and Khudobin may not be the answer. Perhaps goalie prospect Malcolm Subban finally is ready to assume the role of backup.

Pete Jensen's fantasy focus

The Bruins defense was depleted in the playoffs, but they may have found their future No. 1 defenseman. McAvoy played major minutes and was on their first power-play unit. But will he continue to get power-play minutes once defenseman Torey Krug is back healthy? Krug, who led Boston with an average of 3:16 of ice time per game on the power play last season, was sidelined with a lower-body injury in the first round. Exposure to highly ranked fantasy forwards Brad Marchand, Bergeron and Pastrnak at even strength should make McAvoy relevant in a deep league, but a significant power-play role could put him into the Calder Trophy discussion.

Projected lineup

Brad Marchand -- Patrice Bergeron -- David Backes
Frank Vatrano -- David Krejci -- David Pastrnak
Tim Schaller -- Ryan Spooner -- Jakob Forsbacka Karlsson
Matt Beleskey -- Riley Nash -- Noel Acciari
Zdeno Chara -- Charlie McAvoy
Torey Krug -- Brandon Carlo
Kevan Miller -- Adam McQuaid
Tuukka Rask
Malcolm Subban