This report provides a comprehensive analysis of Tesco's marketing strategies, roles, and responsibilities. It begins by outlining the various roles of the marketing function, including the selling concept, societal concept, production concept, marketing concept, and product concept. It details the responsibilities of the marketing function, such as conducting market research, brand management, identifying competitors, and product design. The report also explores the interrelation of marketing with other departments like human resources, finance, production, information technology, and research and development, highlighting how these departments work together to achieve business objectives. Furthermore, the report examines the components of the marketing mix (product, price, place, promotion) in the context of Tesco and Aldi, comparing their strategies. Finally, it demonstrates a marketing plan for Tesco, aiming to improve coordination and achieve specific goals.