Hey Keith, we don't offer capacity planning as one of Trello's features, we're aware of a few third-party apps that will add reporting capabilities to Trello, which may help you with this as well...
Check out them out here, to see if they are helpful with your workflow:
You’re invited to our first ever Trello User Groups Good news for current and aspiring Trello enthusiasts! We’re launching Trello User Groups so that you can network, share ideas, solve ...
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