The hope would be that Jarmo could pry a can't miss young player away from another team. A playoff team isn't going to part with a key top 6 forward preparing for a playoff run.
I haven't seen Bennett play recently, but it seems like he's played well for the Pens in a handful of games. Say he was able to step into the Jackets' lineup and score 20+ goals next season, then maybe sacrificing JJ is worth it. If the Jackets can get a dynamic offensive player, then maybe Moore, Erixon, Goloubef or Murray can fill JJ's void.
But dumping JJ because of salary...
Also, Jackets sweaters I own: Klesla (#44), Filatov, Brassard.