There is a need for Collaboratore role but with Analytics option and Export Data option. Why? Usually Administrators are more technical and they can do extra stuff like site customization, adding users, user roles/groups etc... but most of the Collaborators are "knowledge experts" who are non technical. However, they still need feedback from Analytics (to improve articles) and possibility to Export data. Otherwise they need to ask Administrator (Administrators don't write articles) to do those simple tasks - and that's non-effective.