The most likely cause of the situation where the recovery team does not know what steps to take to recover critical data backups following a major flood is the failure to test the disaster recovery plan (DRP). A DRP is a document that describes the procedures and resources needed to restore the normal operations of an organization after a disaster. Testing the DRP is essential to ensure that the plan is feasible, effective, and up-to-date. Testing the DRP also helps to train the recovery team members, identify and resolve any issues or gaps, and improve the confidence and readiness of the organization. The lack of a well-documented business impact analysis (BIA), the lack of annual updates to the DRP, and the significant changes in management personnel are also possible factors that could affect the recovery process, butthey are not as likely or as critical as the failure to test the DRP. References = Risk and Information Systems Control Study Manual, Chapter 5, Section 5.3.1, page 5-19.