It is not unreasonable to presume that there will be some changes made to the Bruins’ roster for next season, maybe even some fairly significant moves. But the rumor that popped up yesterday — pesky winger Brad Marchand for San Jose center Patrick Marleau — seems like utter nonsense. Bruins general manager Peter Chiarelli has been nothing but patient with his core players, certainly including Marchand, and it would be a panic move to deal a talent like this just because of a bad series or two. Marchand had a bad start to the season and an even worse finish. He was scoreless in five games in the first round of the playoffs against Detroit. He had five assists in the first three games against the Canadiens, but was shut out in the final four games. In 12 postseason games, Marchand had zero goals, and also took several costly penalties. But Chiarelli quickly shot down the report. “I have had no discussions for Marchand and I have no plans to trade him,” Chiarelli said in an interview with WEEI’s D.J. Bean. “I don’t make it a practice to respond to reports in the social media, but occasionally it is necessary.” The deal makes no sense in a few ways. Marleau will be 35 next season and is a center, which the Bruins do not need. And he has three years left on his contract at $6.66 million per year. Marchand, 26, has three years left at a modest $4.5 million per year. And despite his poor start (four goals in the first 31 games), he was superb most of the rest of the regular season, finishing with 25-28-53 totals and a plus-36.