The document discusses different job roles within media companies like the BBC and Endemol. It provides examples of senior leadership positions like the general director of the BBC and president of Endemol. It also describes other roles such as a senior software engineer at the BBC, a researcher for Endemol, and an executive producer. Additionally, it discusses Walt Disney's strategy of horizontal integration through owning subsidiaries across different entertainment industries. Finally, it briefly summarizes Sony's strategy of vertical integration through owning subsidiaries that operate at different levels of its electronics and entertainment businesses.