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From the Agile Plan view, bring some stories up from backlog to the upcoming iteration. These tickets should have at least enough detail that someone glancing at them understands what the story is about. (A story does not have to be fully-analyzed before pulling it into an iteration. But pulling an unanalyzed story into the iteration means that it should get analyzed during the iteration.)
You should skim through all the tickets in the backlog, and shift around priorities.
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