Celtic have announced that Paul Tisdale has joined the club as the Head of Football Operations this afternoon. 67 Hail Hail discussed how reports linked Tisdale to Celtic last week as the club looked to strengthen their backroom team after the departures of Mark Lawwell and Joe Dudgeon back in March of this year. The potential arrival of Tisdale caused much conversation amongst the Celtic fans over the last seven days with many wanting to know what his exact role will be at the club. But now that role has been made clear as Celtic lay out exactly what Tisdale will be responsible for now that h…