 National Express Group PLC LSE:NEX named Helen Weir, a former chief financial officer at Marks Spencer PLC, as chair designate and also appointed an interim CFO . Weir will join the board as an independent non-executive director on October 1 and will succeed Sir John Armitt, as the coach companys chairperson on 1 January 2023, when Armitt will stand down after almost 10 years in the role. 