Tony DeFrancesco helped Houston's Triple-A affiliate find success. The Astros hope he can do the same for their young, struggling major league club. DeFrancesco was chosen as interim manager Sunday, a day after Brad Mills was fired. "There's going to be a commitment to excellence," DeFrancesco said. "Believe me, I want to be the guy that changes the environment around here. I grew up a winner, I had success in the minor leagues, and it's time for it to translate to the major league level. I'm sure I'm going to make mistakes, but that's part of baseball." read more: http://espn.go.com/mlb/story/_/id/8...ncesco-interim-manager-place-fired-brad-mills
