I wouldn't.
Pleks @ $5M > Dubinsky @ $5.8M.
Dubinsky's only scored 20 goals twice in his career while Pleks is almost guaranteed to score 20 per year.
Pleks is the better player overall. Pleks was also on the ice for 49% of penalties for us during the reg season and an insane 56% in the playoffs. Dubinsky was 38% reg season and 27% in the playoffs. I like Pleks more, while he doesn't bring it as physical, he will put up more points incl goals and is way more crucial on the PK. Not to mention, he makes less.