So if Drai is good at center, we push him or RNH to 3c? That doesn't make sense. Running 3 incredible scoring lines is a fantasy and doesn't actually happen.
It can happen this year. They'll all get PP time, they'll all be over 15 minutes a game, that's plenty of time to be productive offensively.
As it is, RNH is going up against the other team's top line. At no point during the game is the team rolling two lines. So there's no reason three lines can't share the ice effectively.
Edit: I'll add that the Oilers don't really have a choice at this point anyway. They need to get a second line going, so Drai and RNH are going to be split up.
Hall - Drai - Purcell
Pouliot - RNH - Eberle
Those are going to be the lines until McDavid gets back. The alternative will be putting McDavid on the top line with Drai and Hall, but would you not be curious to see if Yak and McDavid can continue to click?