Celtic manager Ronny Deila has admitted to The Scottish Sun that his side need to be more nasty.
Delia agrees with the Scotland international and has told The Scottish Sun: “Craig has a point because we are giving away goals too easily. If we had been outplayed in games then I would have been very worried. I would have been thinking we were struggling.
“But in a lot of matches we’ve had good control and not conceded a lot of chances. Craig hasn’t made as many saves as last year when, in Europe, he was man of the match a lot.
“But we are giving teams two big chances in every game with bad defending. A lot of that is from set plays but also individual mistakes.”
Celtic, who could not qualify for the group stage of the Champions League at the start of the season, have failed to progress to the knockout stages of the Europa League.
The Glasgow giants have picked up 39 points from 16 league matches so far this campaign.
Celtic are four points clear of second-place Aberdeen at the moment and have a game in hand.
Deila’s side will take on Fenerbahce away from home in Turkey in the Europa League Group A on Thursday evening.