Birmingham City manager Lee Clark believes his side have made too many costly mistakes in the early stages of the season.
3-2 defeat at Coventry,
Clark's team have leaked eight goals in three games, and he is concerned by the manner they have been scored.
"You do as much work as you can on the training ground," Clark told BBC WM.
"But if people are making individual errors like we've made this season, it's costing us all the time."
He continued: "We've had it with goalkeepers, defenders and midfield players. We had to score four to win [at Coventry], four at Sheffield Wednesday and three at Watford.
"It doesn't matter how you good you are attacking, if you have to score that many goals to win football matches you're making it very difficult for yourselves."
Alongside lower league opposition knocking them out of the Capital One Cup, Birmingham are languishing in 22nd place in the Championship with only one point.
Despite their problems, Clark says that he is determined to change the club's fortunes in their game at home to Peterborough on Saturday.
"We've got to stick together and turn it round," the former Huddersfield boss added.
"We've got a massive game on Saturday where we've got to get a win. I need people that who are going to stand up and be counted."