In today's managed care world, consolidation of health care delivery services is the order of the day, including the practices of Yale faculty members. The Yale Cardiology Network, a faculty-practice organization, has merged with CardioNet of Connecticut, LLC, a community-practice group, to form a statewide heart-care network. Its more than 90 university- and community-based physicians, cardiologists and cardiac surgeons also serve parts of Rhode Island and New York. The network, the first of its kind in Connecticut, will operate under the name of the Yale Cardiology Network and will be headed by an executive committee chaired by Barry Zaret, M.D., chief of the section of cardiovascular medicine.