Celtic fans made their feelings clear towards the club’s board against Aberdeen after a January transfer window to forget. For the second transfer window in a row, to say that it has been underwhelming, would be an understatement of the highest order. Back in December, during Celtic’s defeat to Hearts, you could hear chants of ’sack the board’ from the home fans and now a banner was displayed at Pittodrie on Saturday reading ‘Celtic board on your heads be it’. Neil Lennon defended the Celtic board despite a lack of transfers, with Liam Scales issuing the perfect response and putting the limeli…