Netflix is writing a new script. It abruptly replaced content chief Bela Bajaria last week just hours after a layoff of 1,000 employees that she helped engineer. By Monday, film chief Dan Lin lost his job, too. The ousters of two of the company’s top creative executives are a sign that the streaming giant’s leaders feel the service needs to overhaul its content offerings. Co-Chief Executive Ted Sarandos had complained internally for months that Americans were spending less time watching Netflix and that the service was short on new hit shows, people familiar with the matter said. He also has…