In a Delphi study, the participants should be experts in the area under consideration. In this case, the subject is competencies for public library directors, so successful public library directors would be the best group to discuss the topic. There is no standard measurement for excellence in public library directors across the profession; nor is there any official rating agency for directors. Individual libraries, of course, assess and rate their own directors; but this information is not publically available, nor would it be standardized across libraries. However, there is a yearly rating of all public libraries across the country, published each year in the American Libraries journal: The Hennen’s Annual Public Library Ratings (HAPLR) (http://www.haplr-index.com/index.html). This index uses Institute of Museum and Library Services (IMLS) data to rank libraries on 15 criteria primarily on circulation, staffing, materials, reference service, and funding levels. The index is widely known in the public library field, and has rated libraries for more than ten years. While not a measurement of the success of the