The problem with this idea is how the ice time roles out. Kampf is going to get almost every d zone start and you are going to want to give Matthews and JT ample offensive zone time as well. So where does the 3rd line get minutes? What I would do is run a defence first 3rd line. Kampf Engvall and Jarnkrock. JT Nylander and whoever, Matthews Marner and Bunting and then go with a high energy but defensively responsible 4th line of ZAR, Aube-Kubel and whoever wins that spot.

I think Keefe would still get Nylander on some shifts with JT and Jarnkrok in this lineup and Kerfoot would get PK time. They have so many options this year up front will be exciting to see some of the different combos Keefe puts together. I do like the idea of Jarkrok with Engvall as well maybe even those two with Kubel and they can throw a bunch of hits and play well at both ends of the ice together.
I like ZAR with Kampf as a very defensive 3rd/4th line. I could see the 3rd and fourth lines bringing similar low action hockey this year.