The organization's risk management practices that were most likely ineffective in the scenario described involve the due diligence review of vendors during the bid review process. Effective due diligence would typically include an assessment of all potential risks associated with a vendor, including reputational and regulatory risks stemming from labor practices. Failure in this area suggests that the due diligence process was not thorough enough to identify these risks.
Risk management frameworks and guidelines that emphasize the importance of comprehensive vendor due diligence as part of an organization's risk management practices.

After a potential fraud instance is identified and a lead investigator is appointed, the most likely next step is to determine the competencies needed for the investigation team and assess whether any team members have a conflict of interest. This step ensures that the investigation is conducted by appropriately skilled and unbiased personnel, which is crucial for maintaining the integrity and effectiveness of the investigation process.
Institute of Internal Auditors (IIA) - International Professional Practices Framework (IPPF), Practice Guide:
Assessing Fraud Risks

The requirements for proficiency, according to the IIA guidance, include sufficient consideration of current activities, trends, and emerging issues (1), providing relevant advice and recommendations to management and the board (2), and possessing the necessary knowledge, skills, and other competencies for their responsibilities during engagements (4). These elements ensure that internal auditors are well-prepared and effective in their roles.
IIA's International Standards for the Professional Practice of Internal Auditing

Incentive-based compensation structures can increase risks to the organization's control environment by potentially motivating undesirable behaviors such as taking undue risks or manipulating results to meet targets that trigger compensation rewards. This can undermine the integrity of controls and reporting within the organization.
Governance and risk management literature, including studies and guidance on compensation structures and their impact on organizational behavior and risk.

The chief audit executive (CAE) would include the scope and frequency of both internal and external quality assessments on the quarterly board meeting agenda as part of the internal audit activity's quality assurance and improvement program. This topic is essential for ensuring the board is informed about the mechanisms in place to maintain and enhance the quality of the internal audit function. Regular updates on quality assessments help the board understand the effectiveness of the internal audit activity and its commitment to continuous improvement.
The IIA's International Standards for the Professional Practice of Internal Auditing (Standards) - Standard
1311: Internal Assessments and Standard 1312: External Assessments.
The IIA's Quality Assessment Manual.