At the Organization level, there are three types of user roles: Admin, Community Manager and Event Manager. Here's a breakdown of all their permissions.
Admins have control over:
All the Communities that belong to your Organization
All Events that belong to those Communities
Organization members (add, remove and switch roles)
New Community creation within your Organization
New Event creation within those Communities
Company and Billing settings
Obs.: In case you need to change the admin of your Community, you can find more information on "Changing the Owner of an Organization".
Community Managers, have control over:
Selected Communities only
All Events that belong to the selected Communities
New Event creation within the selected Communities
Event Managers, have control over:
Selected Events only
Changing an Organization member's role
Companies evolve, so do their needs! If an Organization member's permissions need to be adjusted, Admins simply need to click on the corresponding Member in the list. This opens a sliding panel where the role can be changed.
Obs.: For more information, you can also check the article "Adding a Member to an Organization"