Inspect products and services only enough to be able to identify ways to improve the process. End the practice of awarding business on price tag alone. Improve constantly and forever the system of product and service. Institute training and retraining. Workers need to know how to do their jobs correctly even if they need to learn new skills.
Leadership is the job of management.
Managers have the responsibility to discover the barriers that prevent staff from taking pride in what they do. The staff will know what those barriers are. Drive out fear. Managers need to create an environment where workers can express concerns with confidence. Break down barriers between staff areas.