Final answer:
The foundational roles of a manager are Interpersonal, Decisional, and Informational. 'Structural' is not recognized as a foundational managerial role. Furthermore, 'Traditional' authority does not primarily reside in a leader but is based on customs and historical precedence.
Step-by-step explanation:
The foundational roles of a manager have been categorized into three main areas: Interpersonal, Decisional, and Informational. These roles are integral to the functioning of any manager within an organization. The Interpersonal role involves interaction with team members and other stakeholders, the Decisional role encompasses making important choices for the organization, and the Informational role includes the communication and processing of information. While structural aspects like organizational structure might influence a manager's duties, Structural is not typically classified as a foundational managerial role. Additionally, many organizations are moving towards flat organizational structures which support a more collaborative and team-oriented approach, deemphasizing traditional hierarchies. Managers are pivotal in setting the tone of the workplace and influencing employee job satisfaction, so maintaining a positive professional relationship with them is essential for career progression.
Answering the related question, the type of authority that does not reside primarily in a leader is Traditional authority. This form of authority is rooted in customs and historical precedence, not in the personal influence or decision-making of a leader.