The Celtic summer transfer window is one that the fans are really looking forward to this year. With Champions League group-stage football to look forward to and with that, comes the huge UEFA bounty that Brendan Rodgers will be looking to get a huge slice of to improve the team. With a number of positions likely to be on the Celtic boss’ list to improve, there are likely to be plenty of rumours surrounding the club right up until the ensuing deadline day in September. However, adding players means that there is the inevitable eventuality that players will need to move on to improve the balanc…