Robert Novack is an associate professor of supply chain management in the Department of Supply Chain and Information Systems at Penn State University. From 1981 to 1984 he worked in operations management and planning for the Yellow Freight Corporation in Overland Park, Kansas, and from 1984 to 1986 he worked in planning and transportation at Drackett Company in Cincinnati, Ohio. Dr. Novack's numerous articles have been published in such publications as the JOURNAL OF BUSINESS LOGISTICS, TRANSPORTATION JOURNAL, and THE INTERNATIONAL JOURNAL OF PHYSICAL DISTRIBUTION AND LOGISTICS MANAGEMENT. He