Well-known sales gurus Zig Ziglar and Brian Tracy taught me that selling is everyone’s job. That means my job, and your job too. Not just selling “stuff” like consumer goods in stores, but also selling ideas, opinions, dreams and options.
For example: when you are an agile coach, you may wish to sell the idea of visual management to development team members and business managers. As a business analyst you perhaps want to sell a great solution for a business problem to developers and project sponsors. As a manager you might need to sell the urge to increase productivity to workers.