Final answer:
The foodservice manager should use the leadership style of defining roles and tasks for the willing employee, providing opportunity for role clarification and questions, and giving support.
Step-by-step explanation:
The foodservice manager should use the leadership style of defining roles and tasks for the willing employee, providing opportunity for role clarification and questions, and giving support. This leadership style allows the assistant cook to assist the head cook in preparing items on the daily production schedule effectively. By providing clear roles and tasks, offering support, and fostering an environment of open communication, the manager can ensure that the willing employee can contribute to the team's success during the snowstorm.