It pains me to see traditional "Bruins hockey" reduced to being a mere imitation of Florida. They should've never abandoned it.
That aside, weren't last year's Bruins a better version of these Bruins? What Florida did to them, Tampa did to them, and the Islanders did to them, they pin their ears back on the forecheck and keep them from breaking out, and if they don't force a turnover they punish the D retrieving the puck. By game *3*, Charlie McAvoy looked like a boxer who went 12 rounds and lost. It's not just the pressure, it's the degradation of defensemen over the course of a series. Vegas beat them with defensemen who are big, mobile, and defend well, Pietrangelo, Martinez, Theodore, Hague, McNabb, with strong possession forwards like Eichel and Stone at the top, and with physical forwards lower in the lineup like Barbashev and Kolesar who can turn the tables on Florida. Outside of Ekblad and Montour their D is nothing special and doesn't need to be, they can be taken advantage of. The Rangers have a healthy mix of big strong D who can't defend, with small skilled D who can't defend, and Edmonton wishes they could defend like the Rangers.
The "Florida" model is probably not achievable for the Bruins right now, but the Vegas model is. They need serious help at center, their middle/bottom forwards need to play a much more physical game AND get in on the forecheck, but their defense might not be that far off if they can add one good piece, provided that their forwards can give them *some* relief. There's no Selke winner available, but there is a Selke runner up who plays the bumper on the PP. That would be a decent start.