This case study analyzes the application of ethics, professionalism, and governance within a professional setting, specifically focusing on the accounting profession. The paper examines a scenario where Brenda, a manager, must oversee the implementation of new accounting software while adhering to ethical principles and professional conduct, as per Australian legislation. The analysis highlights the importance of ethical decision-making, fairness, and transparency in managing junior staff, emphasizing the need for training, audits, and clear company policies. The study draws upon Chris McDonald's methodology and references relevant literature to explore how ethical considerations impact various management functions, stakeholder interests, and the integrity of information communication technology. The case study concludes with recommendations to ensure ethical practices, prevent errors, and support staff in their duties, thereby promoting professional development and maintaining public confidence in the industry.