Agile Leadership - A Journey Through 2.5 Million Years Punishment Driven Development Agile Manchester 2016 Agile Lessons from the World of Roller Derby Punishment Driven Development Punishment Driven Development Software Management in a Lean and Agile World Agile Lessons from the World of Roller Derby (advanced) Agile Leadership – Is a Servant Leader always the Right Approach? Agile Lessons from the World of Roller Derby The 90 Day Challenge - Agile on a Corporate Scale 
