Houston Astros general manager Jeff Luhnow, right, introduces new interim manager Tony DeFrancesco at a news conference before a baseball game against the Arizona Diamondbacks, Sunday, Aug. 19, 2012, in Houston. DeFrancesco replaces Brad Mills. (AP Photo/Pat Sullivan)

Houston Astros new interim manager Tony DeFrancesco, right, and new hitting coach Ty Van Burkleo stand for the national anthem before a baseball game against the Arizona Diamondbacks, Sunday, Aug. 19, 2012, in Houston. DeFrancesco replaced Brad Mills. (AP Photo/Pat Sullivan)

Houston Astros' Brett Wallace reacts to striking out looking against the Arizona Diamondbacks in the third inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Arizona Diamondbacks' Ian Kennedy delivers a pitch against the Arizona Diamondbacks in the third inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Arizona Diamondbacks shortstop Stephen Drew throws to first base for the out on Houston Astros' Armando Galarraga in the second inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Arizona Diamondbacks' Aaron Hill races up the first base line for a double on a line drive to left field in the first inning of a baseball game against the Houston Astros, Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros' Armando Galarraga delivers a pitch against the Arizona Diamondbacks in the first inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros' Brian Bogusevic (19) is out at second as Arizona Diamondbacks' Aaron Hill throws to first to complete the double play on Brandon Barnes in the sixth inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros' Scott Moore (46) turns his back as Arizona Diamondbacks' Aaron Hill rounds the bases on a home run in the eighth inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. Arizona won 8-1. (AP Photo/Pat Sullivan)

Houston Astros' Brandon Barnes hits into a double play in the sixth inning of a baseball game against the Arizona Diamondbacks, Sunday, Aug. 19, 2012, in Houston. Arizona won 8-1. (AP Photo/Pat Sullivan)

Houston Astros' Jose Altuve throws to first base for the out on Arizona Diamondbacks' Gerardo Parra in the sixth inning of a baseball game on Sunday, Aug. 19, 2012, in Houston. (AP Photo/Pat Sullivan)

Arizona Diamondbacks' Aaron Hill connects for a home run, his second of the baseball game, against the Houston Astros in the eighth inning on Sunday, Aug. 19, 2012, in Houston. Arizona won 8-1. (AP Photo/Pat Sullivan)

Houston Astros new interim manager Tony DeFrancesco speaks at a news conference where he is introduced, before a baseball game against the Arizona Diamondbacks, Sunday, Aug. 19, 2012, in Houston. DeFrancesco replaces Brad Mills. (AP Photo/Pat Sullivan)