After 30 years of leadership, Chelsea Community Hospital's president/CEO will be retiring in January. Kathleen Griffiths will be replaced by Nancy Kay Graebner, who will officially join CCH in January. Graebner is currently the executive vice president of physician strategy and services for Bon Secours St. Francis Health System, Inc. in Greenville, SC. Griffiths, 68, said she had been considering retirement for awhile but had delayed it due to a number of major projects taking place at the hospital.