After months of uncertainty, Elon Musk appears to be moving ahead on a deal to acquire Twitter for $44 billion. (Probably.) If the deal goes through, the next big question is: How will he change the company? Musk’s specific goals for Twitter have been hard to pin down, but the problem of how to transform the strategy of a technology business is a familiar one. What Musk will need to overcome is not unlike the challenge faced by an outside executive joining a new company, a private equity firm on a new deal, or a general manager overseeing an acquired business unit on behalf of a conglomerate.