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How do you determine Project Manager Staff size?

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by surch

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As budgets get tighter and staff justification becomes more inportant, are there any benchmarks or guidelines on how many project managers are minimally needed as a ratio of projects size and/or project portfolio size?

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by jmgarvin

There are a lot of factors here. However, you usually can't stretch a PM over more than about 3 or 4 projects (and that's quite a few).

You'll probably need a team lead on each project team to help the PM and you'll probably need someone who is EXCELLENT are resource management.

by surch

Given each project has a technical lead and also given a matrix organization, when staffing a new PMO or budgeting staff for a PMO, there is 40,000 hours of projects in the pipeline, all approved, how many project managers would you staff for?

by jmgarvin

Billable means maximizing hours, so let's say 50/week. So that means 14000 hours/PM per year.

Non-Billable changes the outlook a little because they may have to split hours from doing PM stuff to paper work. So we'll just call that 10000 hours per PM per year.

Now the fact that there is a team lead takes some work away from the PM, you can probably halve the number of PMs to about 5ish or go lean with 2-3.

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