We are currently evaluating JIRA + GreenHopper as a replacement for VersionOne tool currently used.

We have a large community broken down into multiple scrum teams.

I'd like to be able to look at the burndown of the various scrum teams we have working within a sprint. Currently the burndown/issues etc, almost everything in JIRA is broken down by version which we have defined as a sprint. We'd like to be able to look at sprint burndown overall and then drill down into issues and burndown by scrum team.