Duchene <--> Kyle Turris (solid 2C nothing more), Shane Bowers (not that great of a prospect), Hammond, 1st rounder
While Duchene isn't on Eichel's level, they are both disgruntled and their teams don't hold the leverage. Chytil, ADA, 1st, prospect can be done after another season
Erik Karlsson<--> 1st, 2nd, decent prospects, conditional picks
Ryan McDonagh <--> 1st, conditional 1st, Howden, Hajek
Mike Richards <--> Brayden Schenn, Wayne Simmonds, 2nd round pick
Again not on Eichel's level but Chytil at this point will have shown more than Schenn, ADA > Simmonds and again the Rangers can throw picks in
Kessell <--> basically Kapanen and 1st
ROR <--> 1st, 2nd, decent prospects/players
The common theme is when teams are getting rid of their best players the return is always underwhelming. Even Nash was just a 1st, Dubinsky, Anisimov, Erixon. Just because we have a ton of assets doesn't mean we have to give them all away. In another year or two the Rangers will be in prime position to rob the Sabres.