Rather than offering us yet another series of case studies or a list of best practices that have been covered to death, Olivier Zara offers us a real model for achieving decision-making excellence and thus managing decision-making risks in complex situations.

Arnaud Brouxel, ex-Safran & Thales, Risk Management Expert

A bible to read for all transformation agents and leaders!

Jérôme Lavancier, Program Director Agile@Scale Transformation Coordination chez Société Générale

A must read! This book should be in the hands of every manager. Olivier Zara excels at explaining complex issues in simple terms.

This book makes you feel good: it deals with fundamental issues and proposes concrete, realistic and achievable solutions, focusing on a company's greatest asset: people.

It is an invitation to restore meaning, trust and engagement within the organization through collective co-construction. A major paradigm shift. It's time to take action, and this book gives us the keys to making that change.

Anne Betton, Founder Anastasens - Previously Senior Director at Deloitte

Olivier Zara's finest opus! As I close this book, I feel that it can be enjoyed at any stage of the reader's intellectual journey. In fact, I feel that this book will quickly become a "classic," in the sense that it should be read and reread regularly to find new inspiration each time, with constant delight.

Practical as well as philosophical, it fits in with, or is at odds with, other books and concepts that are stirring the moment, for example on the climate emergency, cognitive biases or toxic managerial postures.

In short, this book on decision-making excellence is not a disembodied theoretical vision, but an essential work for understanding and evolving in the world of people and their organizations.

Pierre Galletti, Management Consultant, Senior Partner at Tripode Performance

After reading this book, you will question your way of deciding and much more!

Charles Didier, Transformative Business Leader at Huntsman Corporation

Olivier Zara's book on decision-making excellence is pragmatic, systemic and coherent with the reality of today's business world.

In an increasingly complex world, it's becoming difficult to make decisions, despite all our efforts to implement greater agility. Learning to make effective, agile and collaborative decisions is an art that too few of us know how to apply.

An approach based on decision-making excellence guarantees a high level of engagement. Olivier's model is logical, full of meaning and firmly rooted in a reality where the human factor has its rightful place. In these troubled times, take the time to benefit from this feedback, as it will help you to better live your job as a manager and decision-maker tomorrow.

Xavier Durochat, Head of Learning & Development, Change and Transformation at BNP Paribas

This book is a treasure trove of explanations on the causes of failure in business transformation projects and programs. The Decision-Making Excellence Manifesto should not be included as an appendix to this book, but on the syllabus of all management schools!

Charles Escoula, Project Manager at AVEM-group

This book proposes a robust and coherent model for managing complexity and crises, but it also invites us to value our human, ethical and altruistic qualities. Are you ready to take a journey into a 21st century enterprise?

Paul-Louis Moreau, Change & Digital Transformation Manager at BNP Paribas

An indispensable book to understand this complex subject from all perspectives and discover the benefits of new managerial approaches.

Olivier Bernard, Deputy Director of Flight Safety at Air France

I strongly recommend reading this book if you feel the need to secure your decision making process in a complex and uncertain environment (which you should!). Are you sure you're running in the right direction? You will find tools and best practices to renew your change management habits. Aimed at leaders, managers and consultants.

Florence Meyer, Coach & Leadership Consultant, Speaker & Author

Olivier Zara’s sassy, iconoclastic and fresh new opus provides techno-language-free incisive and useful advice to make decisions that work! This book reveals a very powerful technology yet as old as homo sapiens to make it happen. A must "read & test" without moderation!

Thierry Roussin, Founder at Aguialabs, Changemaker in Disruptive Innovation, Impact Investing, and Venture Philanthropy to drive Societal Change

A relevant book which offers a holistic and systemic reflection on decision-making intelligence.

This book allows us to better understand (theory) and approach (practice) this complex subject in a more accurate way, both by making us aware of the benefits of new managerial approaches and by revealing the causes of failure of organizational transformation projects and programs. To be put in the hands of all decision-making agents within organizations.

Sabrina Bouraoui, Leadership Development Consultant, Founder of Shades of Gray

Olivier presents his model and framework with a clear and precise approach and processes. He has a great talent for writing in a simple but never simplistic way. We feel the depth and experience behind his words.

François Lavallée, organizational biologist, Founder of AliterConcept www.aliterconcept.com

If you are concerned by decision-making process, Olivier’s book is a real must-read book if you seek to survive in a complex environment.

Marc Weltmann, CEO of Nexidée, International Purchasing Specialist

The work behind this book is colossal. One feels that it is the fruit of a long experience. Inspiring and pragmatic, this book invites us to take action in a world that must change. The stakes of ecology and globalization, undermined by a simple virus, are just a few reasons. It is no longer time to look for heroes who know everything, it is time to use collective intelligence to enable our decision-makers to make the best decisions. Olivier Zara explains how to use collective intelligence effectively and coherently in the enterprise. And above all, he doesn't just tell you what to do, he tells you why!

Philippe Meloni, PDG et fondateur d’Innodirect