“Markets change all the time and our job is to change with them.. Remember, planning is a tool that only works in the presence of a long and stable operating history. And yet, do any of us feel that the world around us is getting more and more stable every day?” ChangeGrowth Mindset Book:The Lean Entrepreneur: How Visionaries Create Products, Innovate with New Ventures, and Disrupt Markets Source: The Lean Entrepreneur: How Visionaries Create Products, Innovate with New Ventures, and Disrupt Markets