Parkhead manager Wilfried Nancy has declared he is still "in unison with the board" and maintains belief that "the team can turn things around" despite a damaging 3-1 defeat to Rangers, which represents a sixth loss in their last eight outings.
The French manager hailed an "exceptional" first-half display from his side, a period in which they went ahead through Yang Hyun-Jun and passed up a number of clear chances.
However, their Glasgow counterparts fought back after the break, exposing the Celtic's fragile defence with a two goals from Youssef Chermiti and a third strike from Mikey Moore.
This result means Rangers move level on points with second-placed Celtic, who could end up six points behind leaders Hearts subject to the evening result.
Addressing the media, Nancy stated, "It was disappointing because we deserved more today, but again we needed more goals."
"In the second half, we let in three goals from throw-ins. It's difficult to accept, but it's reality. This is not about the players or the game plan, this is about key instances."
"This is not about me, this is about letting down the fans because I know the meaning of this game. I can understand the disappointment, but I also saw what we're able to do."
"We are really close, there are many things that can turn around. If it was not the case, I would not talk like this. I truly believe we can turn things around."
He finished by reiterating, "We are together with the board."
Former Scotland midfielder Michael Stewart offered a harsh analysis: "Unworkable position for Nancy. He looks like a broken man. The disconnect between the manager and the team is so obvious."
"It is not something that can continue and it should not have occurred. The people on the board who allowed this should be shown the door as well. Celtic are in an complete disarray."
Former Celtic goalkeeper Pat Bonner identified the problem: "The problems aren't high up the pitch for Celtic, the problems are the shape at the back and the ability to defend."
Former Rangers striker and coach Billy Dodds remarked: "As much as Rangers have done the correct things in this second half, Celtic have been just brutally bad."
"Celtic have just capitulated. Something has to give, there is no doubt."
Former Celtic striker Chris Sutton summed up: "We've seen this story before with Nancy's Celtic."
"You can score, but you've got to defend. This team doesn't do that."
The full-time mood among supporters was one of frustration and calls for action.
Pete: First 45 minutes looked great, post half-time we looked like amateurs. Nancy has one way of playing and can't adapt. Get him out now!
Iain: It's very painfully obvious that Celtic cannot play to Nancy's system. These players are not bad players all of a sudden. The answer is self-explanatory.
James: The board are wholly to blame. I feel sorry for Nancy as he should never got the job in the first place, but he'll be used as the fall guy. We lack the players for his system.
Andy: Nancy has to go. I've been one of those hoping to give him a chance, but there is no improvement. He has a formation that he refuses to alter. We've been beaten by a mediocre Rangers team. Nancy must go.
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