Manager Colin Calderwood was critical of his side's defensive display after Hibernian slumped to a sorry 4-1 defeat at Kilmarnock.
"We've had a severe dose of medicine and we have to learn from the mistakes we make," he told BBC Radio Scotland.
"It looked as if we could have conceded any number of goals today. That can happen to the best of teams and we're not the best of teams at the minute.
"We didn't do our jobs as a group and we all suffer together."
Kilmarnock scored with their first attack, Paul Heffernan profiting from slack play from visiting central defenders Paul Hanlon and David Stephens.
But Hibs were level soon after when Garry O'Connor produced a bit of magic with a lovely, lofted finish.
"It was poor marking right in the centre of our defence then we got back in the game and it could go either way," explained Calderwood.
"But even in that period we looked uncomfortable with anyone running at us and crossing a ball.
"Eventually we got some composure but the game became too helter skelter and we didn't slow it down and keep possession enough. We ran too often with the ball and lost possession.
"We were reckless with the ball when we should have had much more control of the game."
Four minutes before the interval, Hanlon diverted a James Dayton cross into his own net, while the Kille winger and Heffernan added goals in the second half.
"I think we have good players but today they didn't cope with their individual opponents," said Calderwood.
"It became a toiling afternoon for everyone. Physically, they would feel as if they had nothing more to give. The scoreline takes all their energy."
Looking ahead to next week's home game with St Mirren, Calderwood added: "We will analyse ourselves as individuals and as a group. We have to go into work."