Jay Kemble is going to add a chapter to his long and impressive coaching resume next winter. The former assistant baseball coach at the University of Maine, who served as the head baseball coach at Old Town and Orono high schools, has been approved as the head coach of the Bangor High School girls basketball team. Kemble replaces Joe Nelson, who stepped down recently after two seasons. The 55-year-old Kemble, a history teacher at Bangor High, assisted Nelson last winter. “I’m excited.