This is just a general question. What would you recommend as a rollback plan in case a set of rules are deployed in a live environment and they do not work out? Do you simply revert back to the previous configuration?
That's exactly what you'd do. Assign the previous version of the configuration to the deployment group, and the machines will revert back to that configuration the next time they check in with the Management Center. You can do a "Poll Now" on specific machines to force them to check in sooner.