I am finding alot of Groups in our structure that are void of processes. A report showing the Groups structure (groups within groups) and listing the processes, their status (published/unpublished/in progress), version number and the Process Owner and Process Editor would enable a rationalisation of the Group structure and clean out of obselete Groups
Currently you can use the Governance Dashboard to get this information easily. You can expand the groups to see all subgroups and use the Published and Unpublished columns to see if there are any processes in the groups.