Wow there is so much wrong here it is hard to process. Byron should never be on the top line, Danault should be dropped 1 line minimum (personally I would drop him 2 lines). If we want any shot at beating the Leafs we need to put all our offensive weapons in the top 6 , so some variation of

Toffoli-Suzuki-Anderson
Caufield-Kotkaniemi-Gallagher

Follow that with a shutdown line that can score

Tatar-Danault-Armia

And an energy depth scoring line

Byron-Evans-Lehkonen

Caufield will get eaten alive by the grinders on Toronto on that 4th line

I'm sorry that it's hard to process. You do understand that the Habs get last change, right?

I listed the lines in the order of 5-on-5 icetime. If Danault is on your shutdown line, then at home he's gonna play more than anyone else. He needs wingers that can cause and take advantage of turnovers and also be responsible defensively. You also want to play them physical which Anderson can do.

What 4th line grinders are you referring to on TO? Last game their 4th line had Spezza and Thornton. If anything Evans and Caufield should be able to exploit them.