In the Bulk Actions when Exporting the Group Members add the users First and Last name columns. This way you can then sort on the groups to get a full list of team members assigned to each group since there is not a report in Analytics that does this. I was provided with a long process to export the group members and users list and then do a lookup in Excel to pull the first and last name from the user export to the group members export spreadsheet. This does work but it is a long process that can be solved by adding the columns to the Group Member export.