Lynda Mitic, assistant principal of Oakland Mills High School, was named principal of Centennial High School yesterday.
Her appointment -- which was approved by the Howard County school board -- was one of five administrative changes announced yesterday by Howard schools Superintendent Michael E. Hickey.
Mitic replaces Edgar Markley, who announced his retirement from the Howard school system this spring.
Markley, who led the Ellicott City school three years, will become principal of Broad Run High School in Leesburg, Va.
Mitic was a founder of the Eastern Coalition, a group created last fall to fight drug and alcohol abuse among teen-agers in the Oakland Mills area and in east Columbia. Replacing Mitic will be Frank Eastham, department coordinator at the county Extension Program.