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TOCICO Board of Directors



Alex was first introduced to the Theory of Constraints when he met Dr Eliyahu M. Goldratt at a three-day workshop in 1983. That meeting was the start of a long mentorship and friendship lasting up to Eli’s untimely passing.

Over the last thirty years Alex has taken the TOC principles into a number of different industries, particularly the service sector. He is probably best known for the development of a TOC solution for healthcare where, over a twenty year period, he tested the solution in many countries, achieved breakthrough results and then developed and built a generic and now scalable TOC solution specifically for the health and social care environment. Alex has described the solution in the entertaining business novel, Pride and Joy, which has received praise from both TOC and healthcare practitioners from all over the globe. He has also written the healthcare strategy and tactic tree and designed the software solution that supports the S&T tree. Alex has built all these elements so that healthcare and external organisations can implement the solution and gain the breakthrough results in a rapid timescale, safely and sustainably.

During his career, Alex has also launched two Masters degrees in TOC: MSc TOC (Health and Social Care) and MSc (TOC) with Nottingham Trent University. Alex initiated and led the design process from 2004 with the first cohort of six starting in September 2006 and concluding eighteen months later with Dr Eli Goldratt taking the final day - an event recorded in his book, The Choice. These specialist MSc TOC courses were incorporated into the Executive MBA as a route in 2015 – ‘EMBA (TOC)’.

Alex’s early career was in manufacturing, working with aerospace and high-tech industries where he became a Chartered Engineer. Throughout his career, starting with Ashridge Business School, he has introduced and educated many thousands of managers from across the globe to the Theory of Constraints and has consulted at Board-level to many organisations.
Alex is passionate about the Theory of Constraints and in ensuring Eli’s legacy flourishes throughout the TOCICO community and beyond.

KOBUS VAN DER ZEL / Founder Global Turnarounds Inc.

Kobus van der Zel is the founder of Global Turnarounds Inc., operating as a Certified Turnaround Professional (CTP) in companies facing liquidity or transition challenges. Kobus holds mechanical engineering and MBA degrees, and is a qualified TOC Jonah (1999).

Since 1999 he has tied his turnaround fees to monthly profitability or cash flow results, in order to create a pull system for truly understanding the obstacles for higher business and people performance. Coaching and interim CEO engagements over a span of 16 years in South Africa, Canada and the USA has enabled him to summarize the forces preventing higher performance in his book The Forces of Progress (

“When I engage with a new underperforming company I am always surprised at how so many weak people could have gathered in one company” Kobus says. “Eli helped me to understand that people are inherently good, and that it was the company that made the people weak – which is great news, because it means the process can be reversed to make them strong again!”

Kobus’ system for people development is at the root of his turnaround strategies – which combine the best of TOC, lean manufacturing and people development processes to ensure optimal cash flow generation when it is needed most.

Humberto Baptista is CEO OF Vectis Solutions.Vectis Solutions, former member of Goldratt Group. Led from VV projects on Consumer Goods and Retail to manufacturing, projects and services, translation (TOC Insights, GWS in CCPM, S&Ts, etc.), taught TOC VV Application Experts and Project Leaders worldwide. Current interests: TOC Principles, Implementations by S&Ts, advanced TOC Finance, TOC Retail, TOC NPO (Government, Health and Education) and TOC4.

Dr. RUSS JOHNSON / Associate Professor, Washington State University

Russ Johnson has been teaching and implementing Theory of Constraints, Lean and Six-Sigma/Quality Management tools and concepts at the university level for many years. During that time he also worked in conjunction with the Iowa Small Business Development Center and Colorado’s Manufacturing Extension Partnership to bring these concepts to more than 100 companies via student centered projects and direct consulting. He has many published articles and professional association presentations on supply chain management, project management, Quality systems/Six-Sigma, lean production and Rapid prototyping/rapid tooling. Dr. Johnson is certified in the TOC Operations (Drum-Buffer-Rope) and Supply Chain (Replenishment) Management and TOC Critical Chain Project Management applications by the TOCICO. Dr. Johnson is also an active member of several professional organizations including ASQ, APICS, SME, and TOCICO.


Eli Schragenheim is a well known international management educator, author and consultant active in various fields of management like corporate strategy, decision support, innovation, supply chain, project management, shop-floor control, IT and HR. He has worked with huge variety of organizations all over the world, including public-sector organizations, industrial, high-tech and start-ups.

Since he had joined Dr. Eliyahu M. Goldratt, the famous creator of the Theory of Constraints (TOC) in 1985, Eli Schragenheim has taught, spoken at conferences and consulted all over the globe, including the US, India, China, Japan, Canada, Britain, Russia, Brazil, Colombia, Israel, Germany, Italy, Belgium, South Africa and Australia. He taught and trained high-level managers and consultants to use TOC in the most effective way in all the above countries. Many of his past pupils are now practicing TOC in the highest levels.

Eli Schragenheim is also known for his own software simulators and management games designed to experience the thinking and potential of the Theory of Constraints (TOC) in complex environments.

Eli Schragenheim was a partner in the A.Y. Goldratt Institute and a director in The Goldratt Schools. He manages his own company Elyakim Management Systems (1992) Ltd. He served twice as a board member of TOCICO – the TOC International Certification Organization, a non-profit organization that was created by Dr. Goldratt to spread the TOC knowledge in the world. Lately Eli Schragenheim initiated TOC Global, an international organization of the best minds in TOC, to support TOC implementations worldwide, and generate huge value for large clients and projects all over the globe.

Eli Schragenheim is the author of several books on various aspects of management. His first book Management Dilemmas (1998) showed a variety of problematic situations in management and the rigorous analysis leading to the right solution. Next he collaborated with William H. Dettmer in writing Manufacturing at Warp Speed. In this book the new concept of Simplified-DBR, now a key concept in production planning according to TOC, was introduced. He also collaborated with Carol A. Ptak on ERP, Tools, Techniques, and Applications for Integrating the Supply Chain, and with Dr. Goldratt and Carol Ptak on Necessary but Not Sufficient. In 2009 his book Supply Chain Management at Warp Speed, with William H. Dettmer and Wayne Patterson was published. He also contributed two chapters for the Theory of Constraints Handbook, edited by Cox and Schleier published in 2010 by McGraw-Hill.

In March 2015, Eli has opened a blog, now containing more than 70 articles on various topics in TOC that everybody can access.
Dr. LISA LANG / President of the Science of Business

Lisa Lang is a renown Theory of Constraints (TOC) expert and is the foremost expert in the world for applying Theory of Constraints to marketing. She is regularly sought out for her expertise on developing market offers (mafia offers) that increase sales. She has been named a Manufacturing Trendsetter in the USA Today for her work helping highly custom job shops and machine shops to become more productive, more competitive and to bring manufacturing back to the U.S with Velocity Scheduling System. Dr. Lisa has also appeared in CNBC, CBS, The Wall Street Journal, Newsweek and Yahoo Finance to name a few. Dr Lisa is the President of the Science of Business, a consulting firm specializing in helping companies to achieve bottom line results. She has served as the Global Marketing Director for Dr Eli Goldratt, father of Theory of Constraints and author of The Goal. Dr. Lisa Lang is the inventor of The Mafia Offer Boot Camp.

Dr Lisa has a PhD in Engineering from the University of Missouri – Rolla. 

Before becoming a consultant, Lisa was in operations, strategic planning, purchasing, and R&D while working for Clorox, Anheuser-Busch and Coors Brewing.

In addition to consulting, Dr Lisa is a highly sought after Vistage/TEC speaker on "Maximizing Profitability”. Dr Lisa also provides professional keynote speeches and workshops for organizations like: TLMI, ASC, NTMA, NAPM and private events for corporations like: TESSCO, Bostik, GE, and Sandvik Coromant.
Dr. VICKY MABIN / Professor of Management at Victoria Business School, Victoria University of Wellington

Dr. Vicky Mabin is a Professor of Management at Victoria Business School, Victoria University of Wellington, NZ, specializing in TOC and the decision sciences. Prior to joining VUW, she worked for NZ’s scientific and industrial research organisation, working as a consultant to business, government and industry on a wide range of strategic and operational problems.

Vicky holds BSc(Hons) and PhD degrees and a Postgraduate Certificate in Higher Education Learning and Teaching. She is certificated in the TOC Thinking Processes, Operations Management and Distribution Management, and an academic Jonah. She is a Fellow of the Operational Research Society (UK) and has held numerous positions with ORSNZ including President, and NZPICS.

She has published widely in books and international journals, co-authored The World of the Theory of Constraints, and the lead chapter on the TOC Thinking Processes in the TOC Handbook, published by McGraw-Hill in 2010, and has given numerous academic and practitioner presentations and workshops. She is leading the team developing the TOC Research Database, has served on the examinations board for TOCICO, and as an editor for the Decision Sciences Journal of Innovative Education, and International Transactions in Operational Research, and for the TOCICO white paper series.