While Sweeney and his staff look to further augment a roster in transition, the weight of leading this reworked dressing room now falls on David Pastrnak, now anointed as the longest-tenured Bruin.

When the B’s took to the ice on Saturday in Tampa, David Pastrnak was the only player wearing a letter, the “A” for alternate captain he’s worn all year. Had Charlie McAvoy, still skating ...