Dick LING
Dick is recognized as the creator of Sales and Operations Planning and well regarded as an educator, speaker and consultant. Dick launched the first Sales and Operations class for the Oliver Wight Companies in 1985. In 1987, he co-authored the book Orchestrating Success, the first book about Sales and Operations Planning. Dick began collaborating with Andy Coldrick and in 2009 they published Breakthrough S&OP, An Assessment Guide

Carol PTAK
Carol Ptak is currently a partner with the Demand Driven Institute (www.demanddriveninstitute.com) Previously, she was vice president and global industry executive for manufacturing and distribution industries at PeopleSoft where she developed the concept of demand driven manufacturing (DDM).  
Ms. Ptak's expertise is well grounded in four decades of practical experience.

Chad SMITH
Chad Smith is the coauthor (with Carol Ptak) of the third edition of Orlicky’s Material Requirements Planning (McGraw-Hill, 2011) and Demand Driven Material Requirements Planning (Industrial Press, 2016) and Precisely Wrong – Why Conventional Planning Fails and How to Fix It (Industrial Press 2017).  He is also the coauthor (with Debra Smith) of Demand Driven Performance: Using Smart Metrics (McGraw-Hill, 2014). He is a cofounder of and partner in the Demand Driven Institute, an organization dedicated to proliferating demand driven methods throughout the world.