The provided content does not have a clear theme or topic. It appears to be a collection of articles and resources related to business and organizational performance, including the importance of the external environment, Tesco's SWOT analysis, and an article about Britain's 'big four' supermarkets. Additionally, it includes action steps for determining employee training needs, organizing renovation of existing stores, introducing new promotional activities, and other strategic initiatives. The content may be related to a business analysis course or a strategic management module.