This report provides a detailed evaluation of corporate governance issues, specifically focusing on the oversight failures within Deloitte UK. It begins with an introduction to corporate governance, its significance, and the context of Deloitte as a major professional services network. The report then explores the industry lifecycle of Deloitte and its corporate strategy, comparing the effectiveness and structure of its board's corporate governance. A critical analysis of the oversight issues within Deloitte is presented, examining its impact on the company and its stakeholders. The research methodology, data analysis, and findings are discussed, leading to recommendations and a proposed board crisis action plan to mitigate the negative impacts of corporate governance failures. The report includes a comprehensive literature review, research methodology, data analysis, findings, recommendations and references, offering a thorough analysis of the subject.