In business, "quality" doesn't necessarily mean "luxury." A McDonald's Big Mac is a high-quality product because it is consistent. A Big Mac in Tokyo tastes exactly the same as a Big Mac in Chicago. Operations teams use rigorous statistical tools to ensure that every single unit produced falls within an acceptable range of variation.

Bringing it to Marketing: We usually think of defects as broken widgets on an assembly line. But marketing campaigns have supply chains and processes, too. A marketing team produces assets (emails, ads, landing pages, social posts).

If an operations team has a 5% defect rate, the factory is in crisis. Yet, marketing teams often launch campaigns with massive "defects" that ruin the ROI.