This is the second chapter of Part III. We engage with a real world customer to verify the efficacy of our methodology. In the previous chapter, we worked with HiTEM, a high- technology contract manufacturer of electronics components. In this chapter, we report our work with a world-class e-business service company, eSvcs Japan, eSvcsJ for short. This chapter documents an evaluation of an eSvcsJ decision that was under implementation with a world-class Japanese manufacturer. The client of eSvcs, we name Yokozuna. Yokozuna is a title given to grand champions Sumo wrestlers. Yokozuna is a gigantic enterprise, intensely competitive, and remarkably nimble for its size. The firm has a demanding no-nonsense CEO and an authoritarian command and control system that emphasizes execution. The appellation, Yokozuna, is appropriate.