The document discusses how lean UX principles can be applied in an agency consulting context. It describes how lean thinking changes the key steps of selling a project, doing the project, and finishing the project. For selling, it emphasizes client understanding of lean, flexible scoping and processes, and clear deliverables. For doing the project, it focuses on co-location, communication, learning, and permission to fail. For finishing, it discusses defining done, timelines, backlogs, and handoff to clients. Overall, it recommends not being too rigid with principles, focusing on reasons over rules, and considering impacts upstream and downstream.