I want to know the answer to the following question:
On what date did Baker step down as commissioner of the AFL?
All the background I'm provided with is that "After 12 years as commissioner of the AFL, David Baker retired unexpectedly on July 25, 2008, just two days before ArenaBowl XXII; deputy commissioner Ed Policy was named interim commissioner until Baker's replacement was found.". Is that enough to answer the question?