“I don’t want to badmouth the team, but I didn’t want to leave. I was very happy there. I was frustrated when I left.”
Could be me reading into the quote a little too much, but to me this sounds like the player left some time ago. This likely rules out Phaneuf IMO
This player seems to blame the team for being responsible for his departure from Ottawa. This probably rules out Kelly and Neil because the game passed them by (also, Kelly was invited back on a PTO). Stalberg was allegedly offered a contract but didn't take it because the offer from Europe was better.
This leaves Methot (if he thinks the team could've done more to protect him in the expansion draft), Turris, and Wingels.
My money's on Wingels just because Turris has already "badmouthed the team" and because of the "impact players" comment.