Peter discusses how “variation” can affect negatively the team, and what benefits can come from acting on, and reducing variation.
Peter refers to the book where he first read about the effect of variation on work. This book was Freedom from Command and Control by John Seddon (http://www.amazon.com/Freedom-Command-Control-Rethinking-Management/dp/1563273276)
Peter also shares a tip on how to get management to be aware of what is discussed by teams during the retrospective, in order to create trust between management and teams.
