PHILADELPHIA — The Bruins began the Eastern Conference semifinals on a positive note, chasing Flyers goaltender Brian Boucher  in the second period and taking a 7-3 victory at Wells Fargo Center  Saturday.
David Krejci  and Brad Marchand  each had a pair of goals, with Nathan Horton , Mark Recchi  and Gregory Campbell  picking up tallies for the Bruins. The first five of the Bruins’ goals came against Boucher, who was pulled at 17:14 of the second period after allowing Marchand’s first goal. The rookie winger picked up his second of the night by beating Sergei Bobrovsky at 14:59 of the third, and Campbell scored his first career playoff goal at 17:39.
The teams will play Game 2 in Philadelphia on Monday before heading to Boston to play Games 3 and 4.
WHAT WENT RIGHT FOR THE BRUINS
– Things sure are pretty when the first line gets first-line results. Krejci had just one point — his Game 3 goal — in the seven-game series vs. the Canadiens, and his four-point performance went a long way for the B’s Saturday. The B’s are still waiting to get more out of Milan Lucic , who did not have a point on the day, but his linemates certainly cashed in. Horton now leads the team with four postseason goals.
– The Flyers got some rough goaltending out of Boucher, and that’s obviously something the Bruins would welcome as a series-long trend. Boucher allowed five goals on 23 shots before being yanked, and some of the Bruins’ goals were very soft. Recchi got his own rebound before letting an easy one trickle underneath Boucher for Boston’s third goal, while Boucher knocked Horton’s goal into his own net while trying to stop it. Some goals, such as Krejci’s second, came as the result of traffic in front of the net, but it was just a bad showing for Boucher for the most part.
Saturday’s contest marked the fourth time in eight games this postseason that the Flyers have changed goalies during a game. Goaltending was an interesting topic before the series given that the B’s hold the clear advantage, so we’ll see if suspect Philadelphia netminding ends up playing a bigger role than we may have initially thought.
– The success continues for Patrice Bergeron . The second-line center was Boston’s best player in the conference quarterfinals vs. the Canadiens, and he had three assists on Saturday. The 25-year-old made a very nice play in redirecting an Andrew Ference  shot from the point that would lead to Marchand’s goal off a rebound.
WHAT WENT WRONG FOR THE BRUINS
– Pretty soon we’re going to have to change it to “What went wrong (aside from the power play not scoring) for the Bruins.” The B’s couldn’t bury one on any of their power plays, even when a shaky Boucher was in net for the first three. They finished 0-for-5 on the night and are now 0-for-26 in the playoffs. Yeesh.
– Sure, it was 5-1 at the time, but the Bruins allowed James van Riemsdyk’s second-period tally at a dicey time. Marchand had scored 16 seconds earlier to chase Boucher from the game, so the goalie change followed by the quick goal could have given Philadelphia a bit of a spark had they kept it up. Fortunately for the Bruins, they didn’t.
– Saturday marked only the second time since Game 2 of the first round that Chris Kelly’s line failed to produce a point. Peverley had a three shots on goal, but Ryder and Kelly combined for just one on the day. Kelly’s line was very good for the Bruins after the first couple games vs. Montreal, and the Bruins can only hope they get big production once again this round.
– The Bruins took four power plays in the first 13 minutes of the third period, and it finally paid off when Mike Richards ripped a wrist-shot past Thomas with just under seven minutes remaining in the contest. Sure, both teams in this series have bad power plays, but the B’s can’t assume the Flyers’ is as bad as theirs.