It was the Chicago public school system that most fully embraced the concept , and when Paul Vallas , the former chief executive officer for Chicago 's schools , moved to head Philadelphia 's public school system three years ago , he brought his enthusiasm for the military model . ''
Paul Vallas
Chicago
/people/person/place_of_birth
Paul Vallas
Chicago
/people/person/place_of_birth
LOCATION
Chicago
PERSON
Paul Vallas
LOCATION
Chicago
LOCATION
Philadelphia