New coach or old, it didn't matter for Pittsburgh Penguins the way Boston goaltender Tuukka Rask is playing.br Rask stopped 34 shots for his fourth shutout, Jimmy Hayes ended a 15-game goal-scoring drought and the Bruins beat Pittsburgh 3-0 Wednesday night, keeping new Penguins coach Mike Sullivan winless after his first two games.br Sullivan replaced fired coach Mike Johnston on Saturday, and Pittsburgh lost 4-1 to Washington in his debut Monday. ''br Well, I think we are getting some chances, we are generating some chances,'' Sullivan said. ''br For me, what I see is we have to do a better job playing smarter.br I think we are playing hard.br I think our energy is there.br I think our effort is there.