The fact that they went out ahead of the deadline and acquired Clifford is a sign, to me, that they believe that in some capacity physicality and grit is necessary in a line up.
Dubas' philosophy and vision, I believe, is on the right track however it needs some refining and slight altering (as in add more physicality, grit, and players willing to pay the price for a goal. He needs to realize this as part of his growth as a GM. Failure to do so will see him out of a job sooner than later.
Now is the opportune time for a retool while they can still get good mileage out of JT and Muzzin as high end players.