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Should the project manager complete estimates by himself or with input from the team?

Most of the times the resources don't give accurate estimates for their tasks. In fact, their estimates are usually way off the real duration of the task. Is it necessary for the project manager to waste his time by consulting with his team members for creating the project schedule?

Isn't this a waste of time? Isn't it better for the project manager to do the estimation by himself?
asked 10 years ago by anonymous

1 Answer

Many people have different opinions over there, but from my experience, I believe that:

- If the project manager is an SME (Subject Matter Expert) in the project's industry, then he should come up with the estimates himself. This is mostly the case of construction project managers.
- If the project manager knows nothing about the industry, then he should get the feedback from his resources, and ask multiple resources about the potential duration of the same task, and then interpolate to get the duration of that task, and finally add some padding.
answered 10 years ago by TheProjectManager (2,630 points)

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