Our team would undeniably be better with Dwight on it.
"He's not a closer," "You don't have to double him," "He's not a superstar," "He's a clown," whatever ... these are beside the point.
I don't think it'll happen, but if you could trade marginal value (e.g. Lee, Sullinger, Zeller, a mid-to-late 1st, that sort of thing) and add him to the team, that's not a hard decision.