Longtime high school basketball coach Joe Marelle, whose extended battle with cancer made him a symbol of determination, has rebounded from more adversity — in his career. He accepted an assistant coach's job at Greater Atlanta Christian on Thursday, after being told in April that his contract as Mt. Pisgah Christian head coach wouldn't be renewed. Marelle, 58, a teacher at Duluth High School, was coach for the past four years at Mt. Pisgah and led the Patriots to a state championship in 2006.