John J. Coyle is director of corporate relations for the Center for Supply Chain Research and professor emeritus of supply chain and information systems at Penn State University. The author of more than 100 publications in the areas of transportation and logistics, Professor Coyle has presented papers on these topics at such professional meetings as the Council of Logistics Management, the American Marketing Association, the National Academy of Sciences, the Transportation Research Forum, and the Southern Marketing Association. In addition to TRANSPORTATION, he also coauthors best-selling THE MANAGEMENT OF BUSINESS LOGISTICS. From 1990 to 1996, Dr. Coyle was editor of the JOURNAL OF BUSINESS LOGISTICS, and he has served on the editorial review board of the JOURNAL OF BUSINESS LOGISTICS, THE SUPPLY CHAIN REVIEW, and THE INTERNATIONAL JOURNAL OF PHYSICAL DISTRIBUTION AND LOGISTICS. In 1991, he received the Council of Logistics Management's Distinguished Service Award, which honors individuals who have made a significant contribution to the art and science of logistics. In 2003, The Philadelphia Traffic Club named Dr. Coyle Person of the Year, and in 2004 he received the Eccles Medal from the International Society of Logistics and the Lion's Paw Medal from Penn State. Dr. Coyle serves on the boards of three logistics companies. He earned bachelor's and master's degrees from Penn State and his doctorate from Indiana University, Bloomington, where he was a U.S. Steel Fellow.
John Langley, Professor of Supply Chain Management and Director of Supply Chain Executive Programs at the Georgia Institute of Technology, is actively involved in supply chain management and business logistics. His professional involvement includes supply chain strategy, supply chain relationships, and outsourcing of logistics services. Dr. Langley received a BS degree in mathematics, an MBA degree in finance, and a PhD degree in logistics management, all from Penn State University. Dr. Langley has coauthored numerous books and is a consultant and advisor to business firms and serves on the board of directors of UTi Worldwide Inc., Forward Air Corporation, and Averitt Express, Inc.