Jaromir Jagr’s first stop upon joining the Bruins via trade last week was on the right wing, with Tyler Seguin as his center. After his team’s slow start to Saturday’s loss to the Canadiens in Montreal, coach Claude Julien shifted Jagr to a line with Gregory Campbell at center. During practice yesterday at Ristuccia Arena, Jagr was still skating with Campbell, but with Brad Marchand on the left wing instead of Daniel Paille. So at least for the near future, it appears Julien is going to stay away from connecting Czech Republic natives Jagr and center David Krejci. “I know a lot of people would like to see that because they played together (on the Czech Olympic team). I never say no, I don’t think. . . . We’ll see,” Julien said yesterday. “I think I’m waiting to get that puzzle to be put together as far as getting our guys healthy and then at that point I think we’ll have a better idea of that.” Julien hasn’t had his full arsenal of forwards lately with Patrice Bergeron (concussion) joining Chris Kelly (broken leg) on the shelf. Kelly is nearing a return. Despite little to show for their efforts on the scoresheet of late, Julien has also given the line of Krejci centering Milan Lucic and Nathan Horton passing grades. “We want to keep the momentum going,” Julien said. “You’ve got Krejci’s line coming out there and brining some good flow and then we’ve got some lines that there just was no flow to it. So we’re trying to get some flow going on a consistent basis here to keep the momentum of the game going in our favor.” Kelly’s close Kelly was pretty close to playing Saturday in Montreal, but Julien is still waiting on medical clearance to use the center. “He practiced a little harder (yesterday) so he’s inching closer and closer every day,” Julien said.