Henny Van Ooijen, PhD, is Professor in Production and Operations Management at the School of Industrial Engineering of Eindhoven University of Technology, The Netherlands. He teaches Introduction to Industrial Engineering, Analyses of Production, Warehousing and Transportation Systems, and other courses. Corné Dirne, PhD, is Professor in Operational Excellence at the Fontys University of Applied Sciences, The Netherlands. Earlier, he was senior lecturer and curriculum coordinator for Industrial Engineering at Avans University of Applied Sciences.