Final answer:
The head of internal auditing or chief audit executive should assure the effectiveness of the company's risk management, control, and governance processes, act independently, and maintain open communication with the board of directors.
Step-by-step explanation:
Ideally, the head of internal auditing, often referred to as the chief audit executive, should provide independent and objective assurance and consulting services designed to add value and improve an organization's operations. This includes bringing a systematic, disciplined approach to evaluate and improve the effectiveness of risk management, control, and governance processes.
The primary duties often also involve coordinating with the board of directors, external auditors, and management to ensure that the company's financial and operational activities are conducted with integrity and are in compliance with applicable laws, regulations, and internal policies.
In lessons learned from historical corporate governance failings, such as the case of Lehman Brothers, it's clear that the role of the chief audit executive is crucial in preventing the provision of inaccurate financial information to investors and other stakeholders. The chief audit executive should act independently from management to ensure objectivity, and should have direct communication with the board to ensure significant findings or concerns are reported without management filtering or bias.