This case exposes students to refinements in JIT (just in time) purchasing. It explains in detail Bose's concept of JIT II, how it operates, and what its advantages and disadvantages are. Students can critique the JIT II idea and decide if it should be extended to parts that are used in proprietary areas. Students should have some prior exposure to JIT purchasing concepts (e.g., partnering). The case could be used in an operations course or in a course on business-to-business marketing.