Eventually (not to start the season), I think it will boil down to this:
Hall - RNH - Eberle
Yakupov - McDavid - Draisaitl
Pouliot - Lander - Purcell
Hendricks - Letestu - Korpikoski
Last night's game confirmed the chemistry concerns I have with Hall and McDavid. There isn't enough puck to go around for the two of them.
Yakupov is more of a trigger man than Hall which fits better with both McDavid and Draisaitl (who had very good chemistry together).
If Hall-RNH-Eberle is put back together, I give up on life.
Pouliot-RNH-Eberle is their best line by far as of late, no reason whatsoever to break it up.
I'm sure that McLellan will give the Hall-McDavid a lot of leash as he should. Switching out Purcell for Yak is likely the only change we'll see.