Advertising jobs cover a wide range of training and talent. When people say they work in advertising it usually can be quickly narrowed down to sales, marketing, media or promotion. Each has a specific niche in the overall picture of advertising yet they all overlap on the way to the finished product.
While the pecking order starts with the sales departments, the order of importance and area of concentration can change almost daily until the final project launches. And when that happens the promotions manager and his staff become the tracking agents who will compile the results and measure the effectiveness, data that will be needed to decide if the project stays or goes back to marketing and media for changes.
Marketing managers are constantly being requested to develop new and different ways to advertise and promote products and services hoping to better reach potential customers and retain existing customers. Their ideas create work for those in media jobs as they try to make a physical real world interpretation of the marketing manager vision.
Each media jobs person will contribute a response based on their own talents. One might redesign a companies Logo in hopes of attracting new customers, while another might revive an older version of the Logo to remind existing customers of the companies longevity and bring them back with a nostalgic theme.