ROCCO RADIO presents Mastermind Series One featuring 5 challengers from the telecoms industry who must select 3 categories and answer 9 unknown strategic questions. The Challenger who after two weeks who gets the most likes on ROCCO's LinkedIn page post will win a prize. Todays challenger is Öykü Mengenli, Director of Roaming from Mobileum. Her specialist topics are 1)Roaming, 2)OTTs and 3)our Mystery category. Lets see how she copes with ROCCO's tough strategy questions.