A project manager is responsible for the entire project and keeps the team accountable, consulted, and informed. They must be flexible to handle unexpected events like delays, issues with vendors or changes to requirements. Project managers classify unexpected events into those that were anticipated but stronger than expected, could not have been predicted, or could have been but were not. They must have an organizational culture that allows flexibility to address these issues. Applying the 80/20 rule, project managers should focus on the 20% of tasks that will deliver 80% of results to be productive yet lazy. They must be both visionary and goal-oriented with commitment to the project.