EXECUTIVE OPPORTUNITY   AN INVITATION TO APPLY FOR THE POSITION OF SUPERINTENDENT OF SCHOOLS TIVERTON PUBLIC SCHOOLS TIVERTON, RI   The Tiverton School Committee invites exceptional candidates to apply for the position of Superintendent of Schools.   Tiverton is located on the eastern shore of Narragansett Bay, across the Sakonnet River from Aquidneck Island (also known as the Island of Rhode Island). With sweeping views of the Sakonnet River and Narragansett Ba