Purpose, Process, People
Womack and Jones recommend that all managers and executives working in the public sector, who are embarked on a lean transformation journey, think about three fundamental business issues that should guide the transformation of the entire organization:

• Purpose: What customer problems will the enterprise solve to achieve its own purpose of prospering?
• Process: How will the organization assess each major value stream to make sure each step is valuable, capable, available, adequate, flexible, and that all the steps are linked by flow, pull, and leveling?
• People: How can the organization ensure that every important process has someone responsible for continually evaluating that value stream in terms of business purpose and lean process? How can everyone touching the value stream be actively engaged in operating it correctly and continually improving it?