Matthews looks more and more like a guy who climbed the top of the mountain, looked around and enjoyed the view and been there done that. I don't detect any kind of burning desire to win above all, be better than the next guy, find the next gear, find a reason to be excellent again and again.
True greats just keep coming at you doing the same thing over and over to the point of monotony. I don't think that's Matthews. I think he's post Hart Fedorov, post Cup Eric Staal and just go into a mid career cruise control.
Marner is just more or less what he is. He'll figure it out and pile on the points, but the guy is just like this. One crisis every year, struggle with maturity issues, heats up and goes white hot, great stats line and an early spring.