The document discusses the practitioner's experience with Lean UX and how it compares to a more traditional methodology. It describes following the traditional process of scoping, sketching and specifying work over 3 months before handing it off to design and development. This resulted in poor outcomes. Lean UX is presented as an evolution that follows a simpler iterative process of identifying problems, choosing solutions, implementing them, validating work and iterating quickly. The practitioner provides an example of how they helped Sega improve a product in just 3 weeks using Lean UX practices.