Final answer:
Managerial function levels indeed exist in most organizations, representing different scopes of management responsibility from the individual to the entire organization. With the shift toward flat organizational structures, collaborative input across these levels becomes more emphasized.
Step-by-step explanation:
When discussing managerial function levels such as self, unit/team, and organization-wide, we are focusing on the various hierarchical levels of management within an organization. It's commonly acknowledged that these levels exist, with the self being the individual manager's personal effectiveness, unit/team referring to a manager's ability to lead a team or unit, and organization-wide involving strategic management that affects the whole organization. This often aligns with the traditional hierarchy within an organization.
As per the given contexts, the first two levels deal with how a manager functions in their immediate environment, with a focus on individual and team leadership. The organization-wide level, however, is concerned with decisions and policies that impact the entire organization, requiring a more holistic approach.
Indeed, many modern organizations are shifting towards flat organizational structures to encourage a more egalitarian and collaborative working environment where input is welcomed from all levels of the organization.