How often does in a team in a playoff spot sell its UFAs though?
Without getting into a debate about whether or not they're a contender this year, I think it's a difficult situation for a GM to sell off an important player when the team is still sitting in a playoff spot, regardless of whether the player has a long term future with the club. Especially when two regulars (Rielly and Ceci) are still out.
Most teams in that situation just bite the bullet and keep the player, see how far they can go, then let him walk on July 1st.
Plus, you never know. Two teams might be interested enough in Barrie that they want a shot at him before July 1st, and Toronto can trade his rights for a 3rd or something during that week prior to free agency where teams can talk numbers with pending UFAs.