Employees of the LSU-run hospital system are quitting in higher numbers than expected as the Jindal administration and university leaders seek to privatize its operations, the leader of the health care system said Friday. Frank Opelka, LSU vice president for health affairs and medical education redesign, said the nonprofit companies taking over operations of many of the university's hospitals need the employees to stay. "This is a major challenge," Opelka told the LSU Board of Supervisors.