The CEO’s new challenge: Designing systems—not just strategy and culture—to drive real change

Geoff has over 30 years of experience consulting to some of the world’s top companies on the topics of strategy, growth, innovation, and adapting business models to deal with change. Currently, he is a Principal at Deloitte where he has held various positions across the firm’s Sustainability, Innovation, and Strategy practices. Today, he leads all energy transition and sustainability work globally and in the US for clients in the energy, resources, and industrials sectors. Prior to this, he led the innovation firm Doblin and was a senior partner at Monitor Group, serving as a member of its global Board of Directors.

Geoff is a widely sought-after speaker & writer on the topic of growth through innovation. He is a regular contributor to Harvard Business Review and a Wall Street Journal bestselling co-author of two books: Detonate: Why – and How – Corporations Need to Blow up Best Practices (and Bring a Beginner’s Mind) to Survive (Wiley, 2018) and Provoke: How Leaders Shape the Future by Overcoming Fatal Human Flaws (Wiley, 2021). He was a Thinkers50 finalist for the Distinguished Achievement Award in Strategy (2019) and in Leadership (2021). The third and final book in the trilogy – Hone: How Purposeful Leaders Defy Drift – will be released by Wiley in September, 2025. Geoff also co-hosts the podcast “Provocateurs: Profiles in Leadership.”

We help clients make measurable progress on varying dimensions of these challenges by bringing to the table all areas of Deloitte’s experience experience.

Prior to assuming the leadership of the Sustainability business, Steve served as Deloitte’s US Chief Strategy Officer (CSO) for 8 years. Over his time as CSO, Deloitte made a major pivot in strategy, focusing on winning as an integrated organization. Prior to joining Deloitte, Steve was the head of the New York Office at Monitor Group, and head of strategy for Forbes. 

Steve has co-authored two bestselling books – Detonate: Why – and how – corporations must blow up best practices (and bring a beginner’s mind) to survive (Wiley, 2018), and Provoke: How leaders shape the future by overcoming fatal human flaws (Wiley, 2021). Thinkers50 has nominated Steve as a finalist for the 2019 Distinguished Achievement Award in Strategy and in 2021 for the Distinguished Leadership Award. Steve and Geoff Tuff will be releasing their third book – Hone: How Purposeful Leaders Defy Drift in October 2025.

Steve completed his BCom at Queen’s University and his MBA at Columbia University. He sits on the Advisory Boards of the Smith School of Business at Queen’s University and the New York Botanical Garden.