Final answer:
The item (II) Deciding on the project manager's title is not one of the six key decisions in project management. Other key decisions include team selection, project manager selection, project prioritization, and resource management.
Step-by-step explanation:
Project management involves numerous critical decisions that affect the outcome of a project. Selecting the project team (I) and selecting the project manager (V) are fundamental to achieving project objectives, as they ensure the right mix of skills and leadership. Deciding which projects to implement (IV) is crucial as it involves assessing and prioritizing projects based on strategic alignment and resource availability.
Managing and controlling project resources (III) is also essential, as it pertains to effective utilization and allocation of resources throughout the project lifecycle. Conversely, deciding on the project manager's title (II) is not typically considered a key decision in project management, as it is more a matter of organizational hierarchy and does not directly influence project success.