It was like night and day honestly it was with rays of sunshine shining on a Rangers team that operated Wednesday night like a synchronized unit following the dark dysfunction that marked most of the opening five games through the western badlands. The Blueshirts were precise confident and poised in defeating the Capitals 2-0 behind a sharp performance from Henrik Lundqvist that harkened all the way back to well last spring when the franchise goaltender recorded consecutive shutouts in Games 6 and 7 of his team’s first-round elimination of Washington. “It felt like night and day more or less” Marc Staal said after the Rangers ended a three-game regulation losing streak in which they had been outscored 20-5. “We looked a lot more coherent in the defensive zone. We were on the same page.” The victory keyed by a 55-second first-period five-on-three power play kill came following two days of work at the practice facility that featured considerable video work. Finally after spending 21 of the 25 previous days hopscotching the west the Rangers had critical time at home to work on implementing the changes in the system wrought by the coaching change to Alain Vigneault from John Tortorella. “It felt like we came in with a lot of confidence knowing we could beat them” said Lundqvist who made a couple of big stops on the five-on-three before denying Brooks Laich in alone at 10:42 of the second with the match still scoreless. “Our timing was good we were blocking shots. “We did all the little things [correctly]. It was good to see.” Brad Richards earlier in the day had talked to The Post about his team’s lack of instinctive play in attempting to adapt on the fly to Vigneault’s approach notably defending in the neutral zone and getting pucks in deep. The Rangers who had trouble in the defensive offensive and neutral zones out west found a comfort zone.