After Celtic dropped more points this season against Aberdeen at Pittodrie yesterday, attention turned to the club’s transfer window as the Hoops struggled once again this season. Brendan Rodgers’ side, for all their domination of the first half, couldn’t find that cutting edge to convert the many chances that they created that would have put the game beyond managerless Aberdeen and secured three vital points. And after watching Bojan Miovski score against Celtic and get one ruled off for offside, former Aberdeen hero, Willie Miller, said he can’t believe Rodgers didn’t try and sign the North …