Final answer:
A Project Manager is responsible for temporary assignments that require collaboration from various functions and levels within an organization, including external parties. Their work style is collaborative, deadline-driven, and focused on the big picture. Effective communication and transparency are vital traits of a successful project manager.
Step-by-step explanation:
The type of manager responsible for a temporary work assignment that involves participants from different functions and levels of the organization, and possibly from outside the company as well, is a Project Manager. These managers are tasked with overseeing specific projects which are often temporary in nature, ensuring all objectives are achieved within given time frames and budgets. Project managers facilitate collaboration across various departments and might also coordinate with external entities as necessary to ensure the successful completion of the project.
Project managers typically exhibit a work style that is highly collaborative, deadline-driven, and big-picture oriented. They excel in environments where they can manage diverse teams and integrate different areas of expertise. Communication and transparency in forwarding relevant information to team members are critical aspects of their role, greatly affecting the efficiency and outcome of the project.