Jackson County Schools has named Dr. John Green, principal of James Clemens High School in Madison, Ala., the county’s superintendent, the Board of Education announced Thursday.Green will replace Dr. Shannon Adams, who is retiring July 1. Green was one of two finalists, with the other being Dale Gaddis, area superintendent of Cobb County Schools.Before becoming principal of James Clemens High, Green served as area superintendent of Gwinnett County Schools.He also was principal of North Gwinnett High School, associate principal of Brookwood High School and assistant principal at Berkmar High School.Green also taught and coached at Meadowcreek High in Gwinnett and Tucker High in DeKalb County.He holds a doctorate in education from the University of Georgia, a master’s in mathematics education from Georgia State University and a bachelor’s degree in mathematics education from the University of Tennesse, Chattanooga.