Managing Users and Creating Groups [closed]

This is right. You can use WordPress in exactly the same way as you were using your OLD CMS. WordPress is being used by Top newspapers / magazines and websites and they’ve editors / authors and bloggers and ofcourse they have groups & roles. CNN, Mashabale, TechCrunch, etc are all based on WordPress.

There are Free and Premium both type of plugins to take control of Users / Roles / Groups. You can see these other plugins as well.

https://wordpress.org/plugins/user-groups-restrictions/

https://wordpress.org/plugins/user-access-manager/

http://wp-types.com/home/types-access/

There are many more that you can find with Google search.