DALLAS — The Dallas Stars are really rebuilding for the future now.Dallas on Tuesday traded 41-year Jaromir Jagr to Boston and sent surging center Derek Roy to Vancouver. That came just more than a week after captain Brenden Morrow was dealt to Pittsburgh.The latest moves came a day after a 4-0 loss to Anaheim, a team the Stars play twice more this week. Dallas is 12th in the Western Conference with 13 games left, and on track to miss the playoffs for the fifth year in a row.Dallas got two young prospects and a conditional second-round pick from Boston, and a 23-year-old defenseman and a second-round pick from Vancouver. The Stars now have nine picks in this summer’s six-round draft.“Jaromir Jagr produced as a consistent scorer for our team all year and we would like to thank him for his contributions to our hockey club,” Stars general manager Joe Nieuwendyk said. “With our eye to the future, we have acquired some valuable assets that we believe strengthen our organization.”Jagr has won five scoring titles, 1998-99 league MVP honors and Stanley Cups in his first two NHL seasons, with the Penguins in 1990-91 and 1991-92, after they took him with the fifth pick in the 1990 draft.Jagr joins his sixth team after playing for Pittsburgh, the Washington Capitals, New York Rangers, Philadelphia Flyers and Dallas. He spent three seasons in Russia before returning to the NHL with the Flyers last season.Jagr’s 679 goals are 11 behind Mario Lemieux, who is ninth in NHL history.