Arsenal have lost another key member of their backroom staff, with head of coach and player development Marcel Lucassen set to leave the club.The Gunners have made a number of significant changes behind the scenes in recent months, first giving several long-serving scouts their marching orders over the summer.Head of recruitment Francis Cagigao was one of them, departing the Emirates along with other members of the scouting department - including senior scouts Brian McDermott and Peter Clark.And last month it was reported that contract negotiator Huss Fahmy will also be leaving before the end of the year.According to The Athletic, Lucassen is the latest member of Arsenal’s backroom staff to be heading for the exit.The Dutchman has worked as
