Yeah if there's an $11 million winger I'm looking to convert to centre it's not Nylander like Jonas Siegel keeps going on about, it's Mitch. He already plays the typical distributor role most centres in the NHL already play and he's got the defensive chops and awareness to keep up with the assignments. Mitch has a similar build to Crosby, MacKinnon, Point, Barzal, Aho, Thomas, and Stuzle, and all of them play centre.
Paying Mitch the $12 million he's gonna want would be more palatable if he were a centre instead of a winger. It'd be a long learning curve but we've got a looming 2C hole on this roster if not this season then certainly next. Grooming Mitch into an elite centre seems worthwhile and likely has a higher chance of success than trying to groom Nylander into one. Trading for or signing a 2C in free agency would be expensive in terms of assets and/or money and the likelihood of accomplishing such a move is low unless you can move Mitch in a deal (which seems unlikelier by the day), are willing to sell what little farm we've got left, or hope someone like Rantanen or Draisaitl make it to free agency.