The Bruins have succeeded in recent years despite their power play, not because of it. Since the 2009-10 season, they have finished no higher than 15th in the league on the power play, scoring on 14.8 percent in 2012-13, 17.2 percent in 2011-12, 16.2 percent in 2010-11, and 16.6 percent in 2009-10.
But now they might be on to something.
The Bruins scored two more power-play goals in Monday night’s exhibition win over Washington, both by the hand of Zdeno Chara — one on a redirect from the net front on a Dennis Seidenberg shot, one from the point on a five-on-three. That’s nine preseason power-play goals in five games. (For the record, the Bruins had 18 power-play goals all of last season.) Full story for BostonGlobe.com subscribers.