The must-have four roles of a CMO are strategic thinker, brand builder, customer advocate, and revenue driver. A CMO should be able to develop long-term plans for the business, build brand recognition, listen to the customers' feedback and expectations, and identify new revenue streams. All of these roles are interconnected, and a successful CMO should be able to navigate the business landscape with ease, adapting to changes and delivering consistent results. These four roles will help to position a company as a leader in its industry and gain market share.