Dr. James Frazier and Gerri Houlihan have been appointed co-deans of the American Dance Festival School, following the departure of longtime dean Donna Faye Burchfield. Frazier, chair of the dance department at Virginia Commonwealth University, and Houlihan, on faculty at Florida State University, plan to share the position for one to two years before Frazier assumes the role of dean. * Renowned ballerina Cynthia Gregory was named artistic advisor and coach to Nevada Ballet Theatre and its affiliated academy in September. The new Cynthia Gregory Center for Coaching, at the company's headquarters in Las Vegas, will serve as Gregory's home for coaching professional dancers. She plans eventually to work with pre-professionals as well.