KEY DEPARTURES: Loui Eriksson, F: The Bruins spent all season trying to re-sign Eriksson, holding on to him at the NHL Trade Deadline, but were not able to get a contract done. That leaves a gaping hole for Boston, which is light on right wings. Eriksson, who had a rocky start in Boston with two concussions in a five-week period in 2013, ultimately was a very productive two-way forward, including 63 points (30 goals, 33 assists) last season. His steadying influence will be missed. … Dennis Seidenberg, D: Seidenberg reached the end of the road with the Bruins, who opted to buy him out this summer. The defenseman had been hampered by injuries, including back surgery at the start of last season, and his play had tailed off. Rather than pay him for the last two years of his contract, each at $4 million, the Bruins opted to sever ties with the soon-to-be 35-year-old who helped bring the Stanley Cup to Boston in 2011. … Brett Connolly, F: Connolly never quite worked out for the Bruins, just as he never quite worked out for the Tampa Bay Lightning. The right wing scored nine goals and had 16 assists in 71 games for the Bruins last season. The No. 6 pick in the 2010 draft did not receive a qualifying offer and signed a one-year contract with the Washington Capitals. … Chris Kelly, C: Kelly didn't always get the support he deserved from Bruins fans, especially at the end of his tenure, but he was a crucial piece of the 2011 Stanley Cup team. He spent six seasons in Boston, the final one cut short by an ugly femur fracture that made some question whether he was done in the NHL. The 35-year-old said he was not interested in retiring and signed a one-year contract to return to the Ottawa Senators, who drafted him in the third round (No. 94) in 1999.