Growing pains with the system that Keefe wants to implement were gonna be obvious. It's basically what the 10-11 Devils went through when Lemaire came back. I expect some awful defensive games before they catch their legs in this system, the hope should be Markstrom can steal some games while that's happening.
Its less about new coach or system and more about the two top lines
Tatar-Hischier-Mercer worked (analytically) when our aggressive Ruff system wasnt known by the league and caught everyone offguard
The Devils were never going to replicate 40+ shots a game while only letting up sub-20 again
Take Tatar out of the top-6, put Palat with Jack, and put Meier with Hischier. Swap Mercer and Bratt as needed