I don't mean to hate on Nash so much, he plays a complete game, works hard, and seems like a swell fellow but he's supposed to be the "main guy" on a team and has never really produced like one with only one year (2008-09) as the exception. Even in 14-15 that was a committee team. He doesn't elevate his line mates and is not super clutch come playoff time (ok, if Voynov doesn't barely tap that puck in the SFC OT maybe the narrative is slightly different).
I brought up the other day he produces like a 3rd liner on a Cup contender, and a second liner on a decent team (Nick Bonino, Dustin Brown, a super young Anthony Mantha, a young Max Domi) are around his production level, not the Getzlaf's, Kopitar,s etc.
There were 183 players who produced more than Rick Nash in 2016-17. His days of being a superstar are over. His value isn't that high and the return he brings back isn't going to be first. Ironically, it's Buchnevich who was the 3rd rounder that came with him in the CLB trade that might turn out to be the best player in the entire deal.