EXCLUSIVE: Cameron Roach has been promoted to drama boss of UK pay-TV giant Sky. Roach has been acting head of drama since November following the departure of Anne Mensah to Netflix at the end of last year. He will now take on the role on a permanent basis and will report to Sky Content Managing Director Gary Davey. Roach has been with Sky, working under Mensah, for the last five years and has worked on titles including Tim Roth-fronted arctic crime drama Tin Star, Amazon…