URMC / Pathology & Laboratory Medicine / Read Our Blog / September 2016 September 2016 Libby New Co-Director of Pathology Ph.D. Program at UR Dr. Rick Libby is the new co-director of the Pathology Ph.D. program. Libby is co-director with Dr. Lianping Xing and will replace former co-chair, Dr. Robert Mooney, who will transition to part-time on Jan. 1, 2017.