Manager Dave Jones has admitted Sheffield Wednesday's inconsistency is frustrating the club's coaching staff.
The Owls travel to Brighton on Tuesday having failed to win any of their eight league games this season, with performance levels fluctuating wildly.
"To go from the ridiculous to a really good, strong performance in seven days frustrates all the coaches," said Jones.
"At our best we can match anybody in this division."
Jones told BBC Radio Sheffield the difference in performance level between a 4-1 defeat at Birmingham City two weeks ago and an unfortunate 1-0 home defeat by Doncaster Rovers last Saturday was hard to understand.
"We didn't see the performance at Birmingham coming," he said. "And to then go and put in the performance we did seven days later - well, you tell me, because that's how frustrated I am.
"We know it's in there, they just have to get it out."
New Wednesday loan signing Roger Johnson said it was up to the coaching staff and the more experienced players to "get a grip on a very young squad".
The 30-year-old central defender, signed on a three-month deal from Wolves, said with new additions Wednesday could still mount a serious challenge for the play-offs.
"The budget the gaffer [Jones] is working with is tough," he said. "But if you can bring in a few new players it's going to be a good club to be at.
"It was tough at Birmingham and I did think 'What's happening here?' But it was just one of those days, and the game against Doncaster was a lot more positive.
"The longer we go without a win the tougher it is, but Dave Jones is a good guy and criticism is water off a duck's back to him."