If that was the case, it could bite him in the ass. Kaner may playing like it's 2018 and he could give a shit but he can at least score at will when he wants to. Toews, aside from last year has been Meh. the previous 3 for whatever excuse (gassed, injury, machu picchu, vegetarianism, woman issues, etc.), which would beg the question of whether Toews' 2019 campaign was an anomaly or not. With guys like Dach coming up I woulkd think it would be in Toews' best interest to play harder or develop chemistry with someone that can keep him in the top-2 lines. If not--and he plays like he has where he's basically Yannik Perrault (Faceoffs...and that's about it), he can find himself in the bottom-6 and hard to dig his way out being on the wrong side of 30. You also have to consider that chances are if the team fails this year Stan, and likely JC by proxy are gone. A vet coach (think Q, Mark Crawford, etc,) likely won't be awed and impressed like a youngin like JC would be.
Just spitballing but I really think it's at the point where the core players have to amp it up or lose their slots to the next gen players.