If you want to try RNH on LW (and judging by the lines from today's practice it's not happening tonight), sure go ahead. It's garbage time anyway.
Just my opinion though, I don't see RNH looking better on the wing than Draisaitl does. If I had to pick one of them to play wing and one to play center, the best combination is RNH at center and Drai on the wing.
And I couldn't care less about the "Drai needs to play center to earn his 8.5M" argument. Why does he have to? To make the fans feel better?
The way I look at it, they're paying Drai and RNH a total of 14.5M for their skillsets, and they should be deployed in a way that most helps the team. If that means Drai on the wing with McDavid to make one of the most proven lethal combos in the entire NHL, and RNH centering his own line then that's what should happen. Perhaps once we have better wingers to offer, putting Drai on his own line will make sense once again. Problem is, we don't right now.