Let's hope the Charter School is not taking the best and brightest only. This could really become a brain-drain on the student body. If so, the result would be declining standardized test scores. And of course in the future, some people would blame any test score decline on the school system, and not acknowledge loss of the top students to a charter system. I like the suggestion that entire school systems be converted to the Charter School system.
If someone has the data, I'd love to know which elementary schools lost students, and how many were lost.