Disney has decided to keep ESPN — shelving years of speculation about a potential spinoff — in one of the first major strategic calls by newly installed CEO Josh D’Amaro, according to a report. The move signals that the media giant is doubling down on sports as it navigates a rapidly shifting TV landscape and accelerates its push into streaming. People familiar with the matter told Business Insider that D’Amaro has opted, for now, to retain ESPN inside Disney rather than turn it into a standalone company — a question that has loomed over the company for years. Josh D’Amaro is making one of his first big calls as Disney CEO — opting to keep ESPN in-house and scrap spin-off talks. Getty Images The decision underscores ESPN’s continued importance to Disney despite long-running concerns that the network’s reliance on the shrinking cable bundle could drag on the company’s valuation.…