We’re only a month removed from the festivities surrounding Celtic’s double trophy triumph at Hampden but the club’s summer break is already officially over. The coaching staff and players have all enjoyed their holidays in various corners of the world, even if Brendan Rodgers’ phone is unlikely to have stopped buzzing since that famous full-time against Rangers. For supporters, it’s been a very quiet few weeks. Transfer rumours aren’t exactly flowing freely right now and there are no hints of an imminent deal. Many of the heroes of last season started to return to the training base at Lennoxt…