Four automobile companies (W, X, Y, and Z) manufacture cars. Which arrangement of business processes would make one of these companies a good example of best-in-class quality management?

While Company Z's emphasis on distribution and customer service is important, it addresses only a segment of the overall business process. Best-in-class quality management requires a broader scope that encompasses all stages of production and delivery, not just distribution and response to customer issues.

Company W's concentration on engine manufacturing is significant for performance, but it is too narrow to be considered best-in-class quality management. Effective quality management must include a holistic view that considers all elements of the production process, not just a single component like the engine.

Although Company X's focus on supplier quality is essential, it still represents only one part of the overall quality management process. Best-in-class practices require integrating quality monitoring across the entire value chain, including production, customer service, and after-sales support, to truly excel in quality management.