If you would like multiple volunteers or staff to create and modify events, but the final approval to publish is left to a small team, then Event Moderator feature can be enabled.

You can add Event Moderators under Admin Settings > Events > Event Moderators

If left blank this feature is disabled, adding one or more users will enable this feature and will adjust new Event publishing to go through these moderators.

As an Event is submitted for approval, the Event becomes "Awaiting Approval" and an email is sent to all Event Moderators letting them know there is an event to publish.