iGaming Business – Greek gambling monopoly OPAP has announced a number of new appointments following the resignation of several members from its board of directors. Panagiotis Koliopanos, Epameinonda Lekea, Theofanis Moustakatou, Grigorios Felonis, Georgios Simeonidis, Despoina Laskaridou and Efthimia Halatsi all opted to step down from the board. In response, OPAP has elected a number of replacements for the remainder of the term. Kamil Ziegler has been appointed chairmen and chief executive officer, while Spyros Fokas and Pavel Horak will become non-executive directors and take the A and B vice-chairman roles respectively. Meanwhile Michal Houst has been named an executive…