Final answer:
The most frequent mistake companies make during implementation of a high-performance work system is not making sure the system is employee-driven.
Step-by-step explanation:
The most frequent mistake companies make during implementation of a high-performance work system, according to the American Society for Training and Development (ASTD), is not making sure the system is employee-driven. While providing an adequate communication system, ensuring there are sufficient resources, and establishing methods to measure the results of change are all important, it is crucial for the success of a high-performance work system that employees drive the system. This means involving employees in decision-making and empowering them to take ownership of their work and performance.