Thomas Rogne believes Celtic are becoming a 'soft' touch in the wake of their 1-1 draw with Kilmarnock on Tuesday.
Killie had looked set for a rare win at Parkhead before Rogne's late headed effort salvaged a point for Neil Lennon's troops.
The Bhoys have now drawn their last three SPL games and the Norwegian defender thinks that run is not acceptable.
Rogne believes Celtic need to tighten up at the back along with being more clinical in front of goal at the other end.
"We have drawn three games and we should have won this one," he said. "We are too soft.
"We concede stupid goals and we don't finish it off when we should. Just as much as we gave away an easy goal, we were not able to score.
"We had plenty of chances and they basically had nothing. They scored from a counter-attack from our corner and that should never happen.
"My goal doesn't matter other than it's a point for us. It doesn't matter who scores.
"We wanted to be top of the table at Christmas but we lost two points so we are disappointed with the result.
"The performance was better than the last two so we have to look on the bright side, that was good, but the performance doesn't matter if you don't win."