John
Greisner

John Greisner is a professional problem solver with over 30 years of experience at the intersection of business strategy and technology execution. A former technology and business leader himself, John knows firsthand what it takes to drive change inside large, complex organizations — and what gets in the way. He brings deep expertise in operating model design, business agility, and lean thinking to engagements with CIOs, CFOs, and senior executives who need more than a roadmap. John is passionate about building the organizational conditions that make change stick.