BOSTON — If it ain’t broke, don’t fix it.
The fourth line has played a key role in the Boston Bruins’ 18-game point streak. Aside from providing a handful of timely goals and a level of grit, the line has gotten the start in the bulk of the contests in the past month-plus, allowing Boston to set the tone from the get-go.
The tactical decision, however, prevented what could have been a pretty sentimental moment for one of the newest Bruins.
Charlie Coyle’s second game with the Bruins surely was an emotional one, as it marked the first home game at TD Garden for the Weymouth, Mass., native. While the situation called for Coyle to get the …