Test your playbooks using table-top exercises and other simulations (such as AWS Jam games) to teach the blue team and to verify that they know how to respond according to the corporate guildelines, and they are prepared.
A incident response plan not tested, is equal to a backup that never had a restore test… one does not know if it will work until you actually tested it.
Note: AWS Jams with Security challenges are available on the paid version of Skillbuilder
https://d1.awsstatic.com/whitepapers/aws_security_incident_response.pdf