Chief Correspondent covering media and technology Disney CEO Josh D'Amaro has decided to hang on to ESPN, according to people familiar with the matter. It's one of the first big calls of his tenure. Bloomberg/Getty Images ESPN used to be one of the most important assets in media. That's changed, because the media world has changed, and Disney has debated spinning out ESPN as a stand-alone company. But new CEO Josh D'Amaro has decided to keep ESPN in-house, for now. Disney has decided against spinning off ESPN, people familiar with the matter told Business Insider, in one of the first major calls of new CEO Josh D'Amaro's tenure. The question of whether Disney would turn ESPN into a stand-alone company has hung over the company for years, as some investors and analysts argued that the declining cable business was a drag on the larger company's value. Instead, the sports network will stay inside the media giant, which thinks its presence will help its pivot to streaming, the people said.…