Hoffman is a Grade A bunghole. He's essentially a slightly worse Marty St. Louis. He has a massive chip on his shoulder and will now forever hold a grudge against our organization thanks to the arbitration hearing. If we can throw enough money at him on a long-term deal, maybe he'll take it (money talks), especially since he's still a RFA after this season. If he was going to be a UFA this summer, there's no doubt in my mind that he'd walk away from this team.
So the time to trade Hoffman is sometime before next season, while he's still a RFA...and Drouin would be a somewhat logical player to trade Hoffman for, as he can play LW too.
People can look at Hoffman with rose-coloured glasses, but there's no denying that it's been a rocky road here in Ottawa for him.