T he world’s richest man Elon Musk completed his £38 billion takeover of Twitter on Thursday and immediately launched a purge of the company’s top executives. After months of uncertainty over the deal, the eccentric entrepreneur appeared to confirm it had finally been agreed, tweeting early this morning: “The bird is freed”. Reports quickly emerged that Mr Musk, inset, had fired chief executive Parag Agrawal, legal chief Vijaya Gadde, chief financial officer Ned Segal and general counsel Sean Edgett as he bids to seize full control of the social media platform. He is expected to take the company, which reported...