Joel D. Wisner, PhD, C.P.M., CTL is Professor of Operations and Supply Chain Management at the University of Nevada, Las Vegas. He earned his Ph.D. in Supply Chain Management from Arizona State University in 1991. He has taught the Operations Management class at UNLV for 20 years (along with Purchasing, Logistics, and Supply Chain Management classes) and has used or reviewed a large number of textbooks in these areas. He is the primary author of Principles of Supply Chain Management (a South-Western Cengage text) which is going into its 4th Edition as well as Process Management (also a South-W...