Nancy has lost six of the eight games he has managed at Celtic

As he took a slow walk up the Celtic tunnel on full-time, it wasn't hard to feel something for Wilfried Nancy, a haunted manager on the end of a sixth defeat in his eight games. Over-promoted and out of his depth.

A first half at Celtic Park that offered such promise made way for another second half of dismal collapse. They had Rangers on the ropes at the break but you always sensed that they needed a second goal to put them on the floor and maybe a third just to put them out for the count. These are Celtic's frailties these days. One goal is never enough.

Those goals never came despite the chances they had. Once Rangers started to fight back, they hit Celtic with three blows in 21 minutes. Ruthless. The Celtic lights went out in an instant. From light to dark in the blink of an eye.

The colossal weaknesses in Nancy's formation, the giant amounts of space conceded by his players were the problem again. That and their inability to stay in the fight. Was their feeble demise a window to their collective soul, a reflection of their spirit under the new, and surely doomed, manager? It looked like that. A lost dressing room? Perhaps. Just because it's a cliche doesn't mean it isn't true.