Final answer:
Jason's actions of having only the top managers report to him while others report to the head of human resources corresponds to the management function of organizing, where he defines a clear hierarchy of authority within his new department.
Step-by-step explanation:
Jason is engaging in the management function of organizing, one of the four essential management functions. By deciding to have only the top managers report directly to him and delegating the rest of the supervisory responsibilities to the head of human resources, he is establishing a hierarchy of authority. This action involves creating an organizational structure where he can maintain control over strategic decisions while empowering the head of human resources to manage the operations, showcasing effective resource allocation for achieving organizational goals. This approach aligns with the Theory Y style of management, where it's assumed that workers can be self-directed and comfortable with delegated authority, allowing for a focus on higher-level managerial tasks.