Set up a private group where they can coordinate. I suggest keeping it simple, and using a Jive group to share what they are doing and planning will go a long way toward coordinating their efforts.
We are 4 people managing our community and have set up the following groups:
- 1st Level Support (open) - user post support cases and questions via discussions
- 2nd Level Support (privat) - community manager post supoort cases for our Jive hosting company
- Jive (open) - open discussions about upcoming features in the community
I had a group of users who set up a monitoring system within their space where they had 4 people serve as admins and each took lead on the site for a week. For them, being lead meant that the person would publish at least one blog post and would address all new discussion, either answering them directly or pointing them out to the right person. By taking this on as a weekly responsibility, they were able to share monitoring in a manageable way and content stayed up-to-date.
I would also make sure that the official support channels are posted front and center on the space so that if users do run into any technical problems, they know exactly where to go. This is a good practice for any site that gets a lot of traffic.