This essay discusses the challenges and opportunities in the Australian auditing profession and whether the Banking Royal Commission should inquire the operations of the Big Four audit firms. It explores the issues of auditor's independence, audit quality, and non-audit services provided by the Big Four audit firms. The essay also highlights recent regulatory reforms and their impact on audit quality. The opportunities in the Australian auditing profession include the increasing demand for assurance services and the application of Artificial Intelligence in auditing. However, there are challenges related to auditor reporting, audit quality, and disclosures. The essay concludes with a discussion on regulatory attempts to improve audit quality.