PDI Personnel Decisions International, Minneapolis, Minn., Chairman of the Board and Chief Executive Officer Lowell Hellervik, Ph.D., was in April 2007 appointed a Duluth Seaway Port Authority Commissioner by Minnesota Governor Tim Pawlenty. He succeeds Thomas E. Cashman, who was appointed by Governor Jesse Ventura in February 2001. Cashman, a native of Mankato, is president of Feed Service Company, Inc., and executive vice president of the Northwest Agri-Dealers Association, both of Mankato. Hellervik began his career at PDI in 1967, was named President in 1975, and became Chairman of the Board and Chief Executive Officer in 1989. A professional Industrial/Organizational Psychologist…