The 2010 D.C. United season was the club's 16th year of existence, as well as their 15th season in Major League Soccer, and their 15th consecutive season in the top flight of American soccer. After three seasons with Tom Soehn, Soehn resigned from duty on mutual agreement, and became the Athletic Director for the Vancouver Whitecaps FC. On December 28, 2009, United announced the signing of Curt Onalfo, the former Kansas City Wizards coach who had previously been fired following a 6–0 defeat to Dallas in August 2009.