Celtic now have just a matter of hours to tie up any loose ends in this summer’s transfer window before the deadline on Friday. There’s no doubting there has been some considerable change at Parkhead over the summer with one major departure. Matt O’Riley’s exit marked the biggest sale in the history of Scottish football after the midfielder made the move to Brighton & Hove Albion. It was not news that went down well with some as Chris Sutton slammed Celtic for selling O’Riley – despite the huge transfer fee. However, Brendan Rodgers and the Celtic board have been working to maintain the standa…