Before the start of the 2010 season, the Phillies did some re-organizing to the top of their pitching staff. They traded away their 2009 postseason ace pitcher Cliff Lee. In a related deal, the Phillies traded three prospects to the Toronto Blue Jays for ace pitcher Roy Halladay and cash considerations. The Phillies posted the league's best record in 2010, and returned to the playoffs where they lost to the eventual champions the San Francisco Giants in the NLCS. Lee returned to the Phillies as a free agent in 2011 and with his addition, as well as Roy Oswalt’s (who traded to the Phillies at the 2010 trade deadline), the 2011 rotation’s nickname was "The Four Aces”. Their rotation, to go along with an experienced offense, made the Phillies heavy favorites to get back to and win a World Series, but they were upset by the eventual champion St. Louis Cardinals in the NLDS in five games. The Phillies have not posted a winning record since 2011.