I want to know the answer to the following question:
When did Starlin Castro debut as the starting shortstop?
All the background I'm provided with is that "In addition, long-time ace Carlos Zambrano was pulled from a game against the White Sox on June 25 after a tirade and shoving match with Derrek Lee, and was suspended indefinitely by Jim Hendry, who called the conduct "unacceptable."". Is that enough to answer the question?