Bruins extension with young defenseman signals potential changes coming this summer

Timothy T. Ludwig-Imagn ImagesIt wasn't surprising that the Boston Bruins had a quiet trade deadline. General manager Don Sweeney tried addressing the need for a defenseman in January by acquiring Rasmus Andersson from the Calgary Flames. It sounded like a deal was close with Elliotte Friedman reporting some was close to being done, but after contract negotiations for an extension broke down, Andersson was eventually moved to the Vegas Golden Knights.

Leading up to the 3 p.m. EST trade deadline last Friday, Boston was looking for a defenseman, center, and wing. Addressing all three needs was unlikely to happen, but at least one was thought to be addressed. It wasn't, and aside from two minor…