Ange Postecoglou has some big calls to make this summer at Celtic.
The Greek-Aussie faces a tough job of living up to the high bar set in his Double-winning debut campaign – and that's before he even has his squad ready to battle it out in the Champions League group stage.
There looks set to be plenty of additions this summer and Postecoglou has already shown he is a shrewd operator in the transfer market.
