David Moyes admitted it was Sunderland's own fault they fell to the bottom of the Premier League after blowing a two-goal lead against Crystal Palace.
The Black Cats were 2-0 up on the hour through Jermain Defoe's well-taken double.
But not only did the hosts surrender their advantage, they succumbed to Christian Benteke's injury-time winner, the £27million summer signing heading in Lee Chung-Yong's free-kick from the left corner flag.
"It's our own fault, no-one else's fault," said Moyes. "The players need to take responsibility.
"It can't always be me leading them by the hand showing them where they should be and what they should be doing.
"They need to stand up and take responsibility on the pitch."
It was a sickening result for Moyes who looked set for his first Premier League win since coming to the club.
Defoe took advantage of a Joe Ledley howler when the Welsh midfielder's blind backpass set up the leading scorer to give the Black Cats a 39th-minute lead against the run of play.
And Defoe doubled the advantage on the hour, finishing well with his left foot a good home move.
But Palace were right back in it within a minute when Ledley's shot deflected off Patrick van Aanholt and beat a wrong-footed Jordan Pickford.
Sunderland huffed and puffed but could not add a third and Palace made them pay in the 76th minute.
Alan Pardew brought on Zeki Fryers and the sub produced a great cross from the left and James McArthur got in front of van Aanholt to head past Pickford.
Sunderland had some possession but could not trouble Steve Mandanda.
Andros Townsend cut in and went wide with a decent late chance but Sunderland went on to concede that winner to Benteke in the fourth minute of stoppage time.
"I didn't think we'd played well enough to be 2-0 up, but I was taking it all day," said Moyes, who was frustrated to concede a goal immediately, even if Ledley's goal had a large slice of luck about it.
"But for us not to do the basics well enough, for us not to head the ball clear when the ball got kicked up the pitch.
"For someone not to go with Benteke after we gave away a poor free-kick in the last minute.
"Benteke is arguably the best header of the ball in the Premier League and we gave him a free run-in and a jump.
"For their second goal, we didn't defend the back post."
The result sent Sunderland bottom and Moyes admitted that's where they deserve to be.
"We've not won enough, but we've been down here many times before around this position, so it's something I am sure people are aware of," he added.