Chris Wilder launched an astonishing tirade against his "arrogant" Sheffield United players after watching them crash out of the FA Cup with a 1-0 home defeat to non-league Barnet.
Shaquile Coulthirst's first-half penalty saw the Bees eliminate a side 83 places above them in the Football League pyramid at Bramall Lane, and the Vanarama National League side were unfortunate not to win by a bigger margin.
Wilder, who made 10 changes to his side from the team that beat Wigan last time out, accused his players of showing "real arrogance".
"No complaints," Wilder said. "We're quite fortunate that it's not been two or three. They were the better team in every part of the game.
Non-league Barnet celebrate after booking their place in the fourth round of the FA Cup
"I said to the boys, 'don't go out through the main entrance, you don't deserve it. Find a door to sneak out of'.
"It was a performance of arrogance, going off plan and doing what they wanted to.
"The fans should have booed the players louder - we've got an identity of playing and we are a team that has a go. We went out the back door today - that is incredibly difficult for me to take."
Wilder is close to signing striker Gary Madine on loan from Cardiff, but admitted he may seek further reinforcements after seeing his fringe players turn in such an underwhelming display.
"That team was good enough to win games of football," he added. "I will take responsibility because they are players that I've signed and hopefully it was a one-off, but I felt there was a real arrogance about the players today.
Richard Stearman of Sheffield United shows his frustration
"This hurts as much as any defeat that I've had in my time.
"I'm not just going to sweep it under the carpet, I'm not going to go along with, 'it's better to be out the cup because of the league position' - that's rubbish.
"I won't be forgetting it. I'm looking at today and thinking that we might not need one, we might need 11 - the players that played today will struggle to be a part of things going forward."
