Id try:

Heinen-Zacha-Pasta
Marchand-Poitras-JD
JVR-Coyle-Freddy
Lauko-Beecher-Geekie

JD and Poitras need to get going but the more blaring issue is the lack of top 6Fs and 4th line

Also Griz has looked awful since his return from LTIR wonder if that changes managements viewpoint approaching trade deadline

That’s probably what I would do, but I think Montgomery is a little hesitant in having Poitras facing off against top line guys

As much as Lucic's game has fallen off over the years, his play style now is definitely something they are missing on that 4th line. Lauko just hasn't been good enough.

The line adjustment that would have the most impact would be finding a top 6 center to play between Pastrnak and Zacha. With their overall lack of assets as well as two rookie centers the Bruins would be best served waiting until the offseason to address their issues.