I've been asked to help set up an Agile Workflow with the following levels in Workfront: Epics, Sprints, Stories, Subtasks.  Epics would be for larger categories of work over long periods of time (up to several months or more), Sprints would be 1-2 month efforts, Stories would be large chunks work within a Sprint, and sometimes we need to add sub tasks to a Story.  I can do this in WF, but only if I make the Epic level a Project in WF, and when I do that, I lose the ability to see all my Epics in one view (reporting doesn't support Agile views as far as I can tell).  I've also tried using the Agile Team and Iterations, but it seems like there are only 3 organizational levels (Iteration, Story, SubTask--projects aren't easily viewed).  Has anyone out there set up their Agile with Epics, Sprints, Stories, Subtasks, and would you be willing to share with me some info about how you're managing it?  Thank you for any suggestions you can provide.