With big changes coming over the next year or two for the Boston Bruins on defense, that's exactly what general manager Don Sweeney started attacking at the NHL Draft. 

With their second round pick the Bruins selected 6'4" 200lb defenseman Mason Lohrei from the Green Bay Gambles of the USHL. 

During the third round at pick #89 the Bruins selected Trevor Kuntar.

From EliteProspect:

Trevor Kuntar, a top-ten scorer in the USHL last season, wields a shot so heavy that he can beat goaltenders clean from just about anywhere in the offensive zone. Checking in at 6-feet-even, 203 pounds, Kuntar's stocky frame allows him to hang in there on puck battles and leverage himself against the opposition when digging for loose pucks.