Hiromasa Hayashi is a Japanese management consultant and the founder and CEO of Redesign Work Inc. After serving in leadership roles in corporate planning, branding, and workplace transformation at Recruit, he established his own consulting firm to advise organizations on strategy, organizational change, and human resources. He also serves as a Visiting Professor at Professional University of Information and Management for Innovation. His best-known book, "Jōshi wa Risuku Bakari o Shiteki Suru: Kaisha o Tsubusu 'Daikachō' Mondai," examines the phenomenon of senior managers who continue to think and act like section managers, arguing that this "big section chief" mindset hinders organizational growth and offering practical solutions for leadership reform.