Philadelphia’s SchoolStat is a case study of the adaptation of a successful management model, CompStat, developed over a decade ago by new York City’s Police Department. The model has since been adapted by various city agencies in new York; by cities, such as Baltimore’s CitiStat; and by some state governments, such as Maryland’s new StateStat. The School District of Philadelphia is one of the most prominent early efforts to adapt this model to improving the management and performance of schools.