Fulham will continue to bang heads against walls if they don't wise up after losing the ball, according to Sone Aluko.
The Whites came away from Oakwell with a keynote 4-2 win on Saturday, but were betrayed by lack of concentration and poor positioning for both Barnsley goals.
Tim Ream casually conceded possession in the lead-up to the opening goal on four minutes, and Sam Morsy pierced the gap between Ragnar Sigurdsson and Scott Malone for the second.
Over the international break, head coach Slavisa Jokanovic challenged his side to be more organised in transition but conceded post-match they still have work to do on that front.
Aluko believes defensive improvement is down to mentality his team adopts when they lose the ball.
“The manager’s not really working on anything new in particular, it’s just a mentality,” he said.
“He’s got us playing in a very attractive way, but when you’re good with the ball and you have it for long periods you can get a bit sloppy without it and lose concentration.
“That’s been our problem.
“With the ball there isn’t a team who have outplayed us and even against Newcastle we dominated the game.
“With the ball we’re as good as anyone, but without it we’re not a top six team right now.”
Aluko did his best to correct such lapses with his goal in the 41st minute, a left-footed effort from inside the box.
The winger threw light on the annoyance felt by the whole team at the manner of their concessions, saying, “The goals we gave away were really sloppy so at half-time that was the big frustration.
“We showed character to get back straight away, and we always had a threat, so if we could keep the back end tight then we’d win the game.
“There was straight talking at half-time as there is in every game but today was particularly frustrating because those goals were really sloppy for a team of our quality.
“After dominating the game we gave them a really good chance of winning it.”
Aluko said in stated in the lead-up to the win he would forgo a penalty to help Chris Martin get off the mark in a white shirt.
He praised Martin’s overall performance to match his first goal: “Even without the goal he worked very hard today.
“He pressed, he harassed and even when the fans were getting on his back he made himself a nuisance.
“To get his goal meant it a top day for him, it takes the pressure off him because everyone will stop talking him not having scored for however long.”
