Prabhakant (Prabha K.) Sinha is a co-founder of ZS Associates. He has helped firms all over the world with improving sales force strategy and effectiveness. Sinha is a former faculty member at Northwestern University's Kellogg School of Management. He continues to teach sales executives at the Indian School of Business and the Gordon Institute of Business Science in South Africa. He is also the co-author of many academic articles and a series of books on sales force management. He received his PhD from the University of Massachusetts and graduated from the Indian Institute of Technology, Kharagpur.

Sally E. Lorimer is a business writer and a co-author of numerous academic articles and books on sales force management. As a former ZS principal, she helped clients implement strategies for improving sales effectiveness and performance. She has an MBA from Northwestern University's Kellogg School of Management and is also a graduate of the University of Michigan.

Andris (Andy) Zoltners is Founder and Co-Chairman of ZS Associates, and a Frederic Esser Nemmers Distinguished Professor Emeritus of Marketing at the Kellogg School of Management at Northwestern University, where he had been a faculty member for more than 30 years. In 1983, Andy and former Kellogg colleague, Prabhakant Sinha, founded ZS Associates, a global leader in sales and marketing consulting, outsourcing, software and technology.

Andy’s areas of expertise are sales force strategy; sales force effectiveness; sales force size, structure and deployment; and sales force compensation. He has assisted over 250 companies in over 20 countries and across a wide range of industries including healthcare, technology, transportation, and financial services. Andy has spoken at numerous conferences, has taught sales force topics to several thousand Executive, M.B.A. and Ph.D. students, and continues to teach executives at the Kellogg School of Management. He has published more than 40 academic articles, edited two books on Marketing Models, and has co-authored a series of books on sales force management.

Sales force management books co-authored by Andy include:

- “Building a Winning Sales Management Team: The Force Behind the Sales Force” (2012)

- “Building A Winning Sales Force” (2009)

- “The Complete Guide to Sales Force Incentive Compensation - How to Design and Implement Plans That Work” (2006)

- “Sales Force Design for Strategic Advantage” (2004)

- “The Complete Guide to Accelerating Sales Force Performance” (2001)

Prior to joining the faculty at Kellogg, Andy was a member of the Business School Faculty at the University of Massachusetts. He received his Ph.D. from Carnegie-Mellon University.