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The 2010 Phillies were floundering along. Even with Roy Halladay in the mix and Cole Hamels rebounding from a subpar 2009, the Phillies were 56-46 and 2.5 games out of first place. After acquiring Oswalt, the Phillies went an amazing 41-19 the rest of the way out and won the NL East by six games over the Atlanta Braves. Oswalt pitched just so-so in a no decision vs the Cincinnati Reds in the NLDS and was brilliant vs the San Francisco Giants in the NLCS (1.84 ERA in 14.2 innings) but the team failed to move past the Giants.
Overall, Oswalt went 7-1 after the trade and the Phillies won 10 of his 12 starts.
To get Oswalt, the Phillies gave up J.A. Happ. Happ hasn't nearly been the pitcher with Houston as he was for Philly. With the Astros, Happ has gone 18-28 with a 4.84 ERA in 59 starts. For the Phillies, J.A. was 14-5 with a 3.11 ERA in 31 starts. Also included in the deal was promising OF prospect Anthony Gose, who was immediately flipped to the Toronto Blue Jays and was just called to the major leagues at age 21. He stole 70 bases for Double-A New Hampshire last season. The third player was Jonathan Villar, a 6'1", 195-lb shortstop. This season Villar is hitting .261 with 11 HR and 50 RBI in AA.
For 2010, the Oswalt deal was necessary and rewarding. Back injuries hurt his 2011 performance and his one start in the NLCS left a lot to be desired.