Steve Nielsen has been unveiled as Alpine's new managing director - a role designed to take over Oakes' former duties. But the absence of a 'team principal' title, and the fact Nielsen has never previously led an F1 team, has sparked rumours about Christian Horner being lined up for the top job.

By sacking Christian Horner, Red Bull has made a big change to try to return to F1 winning ways. But there are other steps it must take, too