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.
Admin
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
NB: Owner has the same rights than Admins, but they can also change the owner of the Organization. Find more information on "Changing the Owner of an Organization".
Community Manager
Community Managers, have control over:
All Communities or selected Communities only
All Events that belong to the selected Communities
New Event creation within the selected Communities
Event Manager
Event Managers, have control over:
All Events or 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"