(Telecompaper) The Digicel Group has announced the appointment of Alexander Matuschka Greiffenclau as its new CEO, succeeding Colm Delves with effect from February 2018. Greiffenclau has served as chief performance officer at Veon since 2015 and was previously chief transformation officer at Nokia Networks. "Given his telecommunications credentials and his experience of working in dynamic and transforming sectors, he's a natural fit for our business," said Digicel Group founder and chairman Denis O'Brien.