In consulting engagements, the needs and expectations of the engagement client are a greater consideration compared to assurance engagements. This is because consulting engagements are typically more advisory in nature and specifically tailored to provide value and improve an organization ' s operations based on the client
' s requirements. In assurance engagements, the focus is more on the independent assessment against criteria or standards, which does not vary based on client needs to the same extent.
IIA Practice Advisory on Consulting Services

According to IIA standards, the Chief Audit Executive (CAE) is responsible for confirming to the board, at least annually, the organizational independence of the internal audit activity. This is crucial for maintaining the effectiveness of the audit function and ensuring that it operates without undue influence from management, thereby allowing the board to trust in the impartiality and efficacy of the audit reports.
IIA Standard 1110.A1: "Organizational Independence"

According to the IIA's Code of Ethics, internal auditors are responsible for maintaining their knowledge, skills, and other competencies at a level required to perform their professional responsibilities. Internal auditors should also pursue relevant professional development opportunities to enhance their ability to add value to the organization. The other options may support or facilitate the development, but they are not ultimately responsible for it.

The most suitable internal control framework for an organization is one that specifies common best practices for the organization to evaluate and benchmark. This type of framework provides a structured approach to assess and enhance their control environment by aligning it with recognized best practices, facilitating continuous improvement, and enabling benchmarking against industry standards or peer organizations.
References: Institute of Internal Auditors (IIA) - International Professional Practices Framework (IPPF)

To identify questionable bidding practices, the internal audit activity should review the city ' s contracting files. This review will help determine if the city made efforts to solicit bids from a diverse range of interested firms, ensuring a fair and competitive bidding process. By examining these files, the auditors can identify any patterns of favoritism or irregularities in the awarding of contracts, which are key indicators of questionable bidding practices. This approach is consistent with best practices in auditing procurement processes.
The IIA Standards: Standard 2210 - Engagement Objectives: " Internal auditors must consider the probability of significant errors, fraud, noncompliance, and other exposures when developing the engagement objectives.
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IIA Practice Guide: " Auditing the Procurement Function " : Emphasizes the importance of reviewing solicitation efforts and contract awards to detect potential irregularities.