A financial services organization is planning on staffing a complex consulting engagement that involves the consolidation of two large banking organizations, including changing many of the processes. Which of the following skills is the least important skill for auditors to possess in assisting in the review of target processes?

a. Ability to quickly develop relationships.

b. Specific business-related skills related to the processes being reengineered.

c. Experience in performing testing of controls.

d. Unstructured problem-solving skills.