A rare two-day layoff allows the Rangers to decompress from Thursday night’s 3-2 overtime loss in Game 1 here to learn from their mistakes and calm their frustrations (read: Henrik Lundqvist). That process began Friday afternoon back at the scene of the crime, where John Tortorella walked his players through game tape to get them thinking about adjustments for Game 2 of this second-round series against the Boston Bruins Sunday afternoon. Skating was optional, and most players stayed off the ice, listening to Tortorella explain “some things of the overtime,” aspects of the “Bruins’ concept” and a balance of what the Rangers did well and where they struggled in falling behind early for a second straight series. “I’m not a big believer in you need 15 positives to four negatives or not too many negatives or this, that and the other thing,” Tortorella said. “We let the tape talk. And our team is used to that. I’m not saying it’s negative; I’m just saying we give our team what we think they need to get prepared for the next game.” One section of Tortorella’s video likely was entitled “discipline.” The Rangers were the least-penalized team in the NHL during the regular season (9.2 minutes per game) and they entered Friday holding that distinction in the playoffs, too (6.2 minutes). But for a second straight series, an uncharacteristic march to the penalty box cost the Blueshirts Game 1.