Stephen Graves is the Abraham J. Siegel Professor of Management and a Professor of Operations Management at the MIT Sloan School of Management. He has a joint appoitnemnt with the MIT Department of Mechanical Engineering. Graves develops and applies operations research models and methods to solve problems in manufacturing and distribution systems and in service operations. His current research is focused on operational issues arising in online retailing, supply chain optimization and strategic inventory positioning, and production and capacity planning for various contexts. Graves holds an AB in mathematics and social sciences and an MBA from Dartmouth College, and an MS and a PhD from the University of Rochester.

Sean Willems is the Haslam Chair in Supply Chain Analytics at the University of Tennessee's Haslam College of Business. In 2000, he co-founded Optiant, a provider of multi-echelon inventory optimization tools, which was later acquired by Logility, Inc. He has been a visiting professor of operations management at the MIT Sloan School of Management since 2016. His work with companies such as Hewlett Packard, Proctor & Gamble, and Intel has led to finalist selections for the 2003, 2010, and 2017 Franz Edelman Award for Achievement in Operations Research and the Management Sciences. He has been a finalist in 2006, 2008 and 2012 for the Daniel H. Wagner Prize for Excellence in Operations Research Practice. His work on inventory placement under non-stationary demand won the Wagner Prize in 2008. Willems is the department editor of the practice section of the journal Production and Operations Management and he is the deputy editor of Interfaces. He received his bachelor's degree in decision sciences from the University of Pennsylvania’s Wharton School and his master's in operations research and doctorate in operations management from the MIT Sloan School of Management.