Not much went right for the Bruins on Wednesday night. The Capitals hoisted their Stanley Cup championship banner and went on to beat Boston 7-0 in the season opener for both teams. The beatdown began just 24 seconds after the puck dropped as Washington had complete control of the game from start to finish. B’s goalie Tuukka Rask was pulled midway through the second period after he allowed five goals on 19 shots, including three goals on three shots in 3:11. Head coach Bruce Cassidy mentioned he thought about pulling the goalie when the team went down 4-0, but wanted to give a chance to bounce back. “Yeah, I thought we’d respond at