What factor is NOT considered when scheduling a review of security controls?

When scheduling a review of security controls, factors such as the availability of security testing resources, the criticality of the systems and applications, and the likelihood of a technical failure of mechanisms are vital components to consider. The availability of testing resources ensures that the necessary tools and personnel are in place for an effective assessment. The criticality of systems and applications helps prioritize reviews, focusing efforts on those that could have the most significant impact if compromised. The likelihood of technical failures informs risk assessments and the urgency of the review based on the potential vulnerabilities present.

In contrast, while team members' availability for testing is certainly an important logistical consideration in the overall planning process, it does not directly relate to the effectiveness or strategic importance of the review itself. A review can be conducted as long as the resources and critical considerations are aligned, regardless of specific team members' schedules. Hence, it is not a primary consideration when determining when to conduct a security controls review.