Sunderland manager Gus Poyet has told his players that they all need to pull in the same direction if the club is to avoid relegation.
Sunderland undid their good work over Christmas by losing 1-0 at home to Aston Villa on New Year's Day, a result which left them propping up the Premier League table and four points shy of safety.
The club's one step forward, two steps backward form has persuaded Poyet that his message is not getting through to some of the players, and that is a situation he insists will not be allowed to continue.
Poyet said: "Me, I am the head coach, I coach the players I have got the best I can.
"For moments, it looks like we are getting it and getting better, and for moments, it looks like I am coming from another planet, which is difficult to accept.
"The best teams in the world play one game, one game. They know why they are playing, what they are playing for and everybody does the same.
"If you go on the pitch and everyone is playing their own game, it's impossible.
"I said it two months ago: there are not going to be heroes here, we are all in it the same and we will all be safe or we will all go down.
"Apparently, some people don't get it. They try to play their own game and they try to be in their own position and they try to do things that are not acceptable.
"It's a difficult day for me, I need to be careful what I say."
"I have said to you many, many times, it is not a tennis match, it's football and it's 11 and there are players we normally think are able to do things, and we are learning more and more that they are not able to do it.
"That's the only good news today, I have got a good report on some players who are not able to play a certain way, which is going to be difficult for them because we will play that way, so the problem is for them."