I also think there's a big difference between Puljujarvi and Nichushkin. With Val, going back to his pre-draft days he was dominating, taking defenders wide, putting his shoulder down and going to the net whenever he damn well pleased. Something was there, it just took a long time to unleash it.
That's never been the case with Puljujarvi. He's never been that dominant player. I think best case scenario for Puljujarvi he becomes a 3RW with occasional PP2 time as a net front presence. I don't think that will be on the Oilers, though.