Ever since the WordPress roles and capabilities system implemented in WordPress verion 2.0 back in 2005, there has been no easy way to implement a user hierarchy.
With the User Hierarchy plugin, you can control which user roles can edit which other user roles. For example, you can add a new user role called “Manager” that can view all users, but only create and edit users with the “Author” user role. This plugin gives you full control over your user management, even when you are using a complex role hierarchy.