We mentioned the rumor in today’s Nats Roundup, but now it’s official: the Nationals just put the finishing touches on a trade, sending once-promising outfielder Lastings Milledge and out-of-sorts reliever Joel Hanrahan to Pittsburgh in exchange for utility outfielder Nyjer Morgan and middle reliever Sean Burnett. Milledge, who had been toiling in Triple-A Syracuse for most of the year, will likely be remembered by Nationals fans as potential lost — after all, there was a contingency who believed that Milledge was the Nationals’ centerfielder of the future no fewer than three months ago. The team did get good value with the trade, though: both Morgan (.277, 27 RBI, 18 SB) and Burnett (3.06 ERA, 23 Ks in 32.1 IP) are serviceable players who are upgrades over what the team gave up. The move begs the question though — if the much-discussed prank to vote a demoted Milledge into the All-Star Game as Washington’s representative had actually worked and he was traded, what would have happened? Now the world will never know.