The besieged Celtic directors must have thought that sanctioning the signings of Mika Baur, Camilo Duran, Haissem Hassan and Kasper Høgh for a combined outlay of over £30m this summer would bring the unrest about their parsimony, transfer strategy and stewardship to an abrupt end.
But 120 minutes of football in Linz last night, coupled with arguably the most calamitous European result in their entire history, disabused them of that notion.