Final answer:
Heather's role as someone who provides guidance without authority suggests she is best classified as an advisory manager.
Step-by-step explanation:
In Heather's scenario, where she provides guidance, instruction, and direction without actual authority over the team members, her role best aligns with an advisory manager. An advisory manager supports the team and helps lead projects or improvements without holding formal power. This contrasts with a top-level manager who would have significant decision-making authority, a director of the board who governs an organization, or a lower-level manager who typically has direct supervisory power. Her role is also not that of a nonmanagerial employee, as she has some leadership responsibilities, although limited in scope.