松井稼頭央
On September 20, Ed Wade was named General Manager. In his first move, he traded Jason Lane to the Padres on September 24. On September 30, Craig Biggio retired after twenty years with the team. In November, the Astros traded RHP Brad Lidge and SS Eric Bruntlett to the Philadelphia Phillies for OF Michael Bourn, RHP Geoff Geary, and minor leaguer Mike Costanzo. Utility player Mark Loretta accepted Houston's salary arbitration and Kazuo Matsui finalized a $16.5 million, three-year contract with the team. In December, the Astros traded OF Luke Scott, RHP Matt Albers, RHP Dennis Sarfate, LHP Troy Patton, and minor-league 3B Mike Costanzo, to the Baltimore Orioles for SS Miguel Tejada. On December 14, they sent infielder Chris Burke, RHP Juan Gutiérrez, and RHP Chad Qualls to the Arizona Diamondbacks for RHP José Valverde. On December 27, the Astros came to terms on a deal with All-Star, Gold Glove winner Darin Erstad.