April 20, 2017 Marietta - Leigh Colburn (right), director of the Graduate Marietta Student Success Center, talks to Jose Mena, student behavior program specialist from Fulton County Schools, at the Graduate Marietta Student Success Center in Marietta High School on Thursday, April 20, 2017. Leigh Colburn has earned plaudits for her work with at-risk students at the 2-year-old Graduate Marietta Student Success Center, an experiment housed inside the city’s high school. Educators from across Georgia have made pilgrimages to the center, hoping to find ideas they can copy. HYOSUB SHIN / HSHIN@AJC.COM

Why do schools fail? Marietta asked the students