This report delves into the fundamental aspects of marketing, examining its role within an organization and its interrelationship with other functional units. Using Nestle as a case study, the report explores the key duties and responsibilities of a Marketing Officer, proposes a structure and operations for a marketing department, and analyzes how marketing influences various organizational objectives. Furthermore, the report compares Nestle's approach to applying the marketing mix (7Ps) with that of National Express, highlighting their respective strategies for achieving business objectives. Finally, the report develops and evaluates a basic marketing plan for Nestle's nationwide expansion, incorporating SWOT and PESTEL analyses to identify strengths, weaknesses, opportunities, and threats.