You throw Kane (much as I dislike the smoke and douchery around him) and Hyman into the mix, running Mcd-Drai-Nuge at 1-2-3 becomes a very effective option.
McLeod with McDavid just makes sense. The line needs to maximize its threat on the rush.
Shelters the 4th line as well by bolstering the 3rd line to be an actual threat.
McLeod-McDavid-Yamamoto
Kane-Drai-Puljujarvi
Hyman-Nuge-XXXX
Than suddenly you have good interchangeable options remaining for 4 spots for the 3RW and for salvaging a serviceable 4th line from Foegele, Kassian, Perlini, Ryan, Sceviour, Benson, Shore, Turris, Griffith etc. You can literally make the training camp projected "strongest 3rd line in hockey lol f*** you Holland" into the 4th line with Foegele-Ryan-Kassian if you wanted.
And then if all projections regarding Holloway come through (where I think we should temper our expectations, he's not going to be an automatic saviour immediately, lots of healing and developing there still), I think he's a boost to the 4th line as well. Hopefully at minimum he can supplant Shore (blech).
Any way you slice it, that 3rd line and 4th line can take on more minutes and help get our impact players some softer minutes.
Still think we need to fire Holland/Tippett, but you still have to go for it this season, can't just fold. Kane, Holloway, and hopefully some kind of top 4 D boost and a goalie via the deadline (or before) could place us in the picture.