Accelerance Group International, LLC | 22 followers on LinkedIn. Empowering Leaders to Achieve Transformational Impact | About Rod McCowan Rod McCowan, Ph.D., is a global executive coach, professor, and strategic change leadership expert. He has spent more than three decades helping CEOs, C-suite executives, and senior teams navigate high-stakes transformations across the corporate, public, and social sectors. Rod is the Founder and Chief Catalyst of Accelerance Group International, a boutique executive coaching and leadership development firm.