Rangers are in a period of upheaval with the chips still very much up in the air as the club’s hierarchy faces another sustained period of restructuring. Only last year were Rangers ushering in a new era under John Bennett and James Bisgrove after Douglas Park and Stewart Robertson left the club. The likes of head of academy Craig Mullholland and sporting director Ross Wilson also left to be replaced by Zeb Jacobs and, eventually, Nils Koppen respectively. But with Rangers’ executive team now four players short following the exit of director of football operations Creag Robertson, Barry Fergus…