The Bruins continue to score above and beyond expectations this season, and a massive underlying reason behind it is the performance of the power play. The unit will have the occasional off night as happened in the loss earlier this week to the Edmonton Oilers where a shorthanded goal allowed to Connor McDavid was pretty damaging, but there’s no denying the PP’s effectiveness when they are ranked fifth in the NHL scoring 26 percent of the time they hop over the boards.