The Core 4 book by Robert Weiler

Harness Four Core Business Drivers to Accelerate Your Organization

The Core 4 book by Robert Weiler and Brimstone Consulting explores the foundational capabilities of any organization, from a small group to a global enterprise—leadership, change, alignment, and energy. These core drivers are critical to accelerating growth, performance, and profitability.

The Core 4, by Bob Weiler, Managing Founder of Brimstone Consulting, draws on decades of experience advising and accelerating some of the world’s leading organizations.

core 4 book

About the Book


High-performing teams and enterprises have learned to harness four key drivers, simultaneously:

  • Lead change that delivers results
  • Develop leaders at all levels
  • Align teams around shared goals
  • Energize people to make change happen

The book includes perceptive observations and anecdotes to help you lead – and succeed.

Interested in learning more?


“In this compelling, engaging book, Bob Weiler has captured a lifetime of experience helping diverse organizations be more aligned, profitable, wise – and human.”

Hiro Takeuchi, Professor of Management Practice in Strategy Unit, Harvard Business School 

“Having worked with Brimstone for over 20 years, I can testify to the excellent work they do and have experienced first-hand the accumulated wisdom that is shared in this great guide for leaders. “

Tim Wentworth, CEO, Evernorth and President, Cigna Services

The Core 4 contains critical reminders for anyone tackling change – whether it’s taking on a new job, building a stronger team, transforming an organization, or accelerating business results. Bob Weiler and the Brimstone Team have captured these reminders in a down-to-earth, pragmatic way that can be applied directly to the real-world situations that leaders face.”

Jane Huston, SVP of Human Resources, OneSource Virtual

“Having worked with Bob Weiler and Brimstone Consulting, I can tell you that they’re the real deal –smart, insightful, and able to inspire major change.  Much like this small, powerful book they’ve written.”

Eric Norris, President, Albemarle Lithium

“Bob and the Brimstone Team have written a must-read guidebook for anyone leading change – read this book and learn from their years of practical experience.”

Noel Tichy, Professor of Management and Organizations, Ross School of Business, University of Michigan

“As a person who has led in several Fortune 100 organizations during times of tumultuous change, I wish I had found this book years ago.   The Core 4 provides a common sense and simplified approach to guide leaders seeking to move organizations or teams forward.”

Maura Dunn, Former HR Executive, General Dynamics Electric Boat


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