The O2 has announced the appointment of Steve Sayer (pictured left) as vice president and general manager, and Danielle Kennedy-Clark (pictured mid) as deputy general manager. Currently in the roles of commercial director and operations director (respectively), their promotions follow the recent appointment of John Langford (formerly VP & GM, The O2) to chief operating officer, AEG Europe. Also announced was the appointment of Gavin Brind (pictured right) to the role of fin...