Worried Sam Allardyce is going back to the drawing board in a bid to kick-start Sunderland's survival hopes.
For the second time in seven days, Allardyce made an early substitution and tactical switch after seeing his side battered by Chelsea at Stamford Bridge.
Off came Sebastian Coates after just 23 minutes, with Sunderland trailing 2-0, with Sunderland switching to a 4-5-1 formation.
Chelsea steam-rolled them into submission first half and despite a spirited second-half display, Sunderland were on the wrong end of a 3-1 defeat.
It left Allardyce admitting he is back to square one.
Allardyce said: "Where do I go next?
"What team do I pick? What system?
"I find myself toiling, we put one team out in that system and did really well at Crystal Palace and Arsenal.
"But it never looked like working at Chelsea.
"We changed it early, it looks like I will have to find a new system and new players in that system to try and get a result."
With January just around the corner, Allardyce, who took charge in October, said he has to find a solution quickly or look to the transfer window for reinforcements.
Allardyce added: "I've had a while to look at it and I'm disappointed in the lack of consistency.
"We have seen some good things, back-to-back wins which has given us the opportunity to go forward.
"Now we have dropped back in the mire again by our lack of results.
"At Chelsea we didn't deserve a result, at Arsenal and against Watford, they were killers for us.
"We could have got points in those games, they weren't.
"Now we are finding ourselves on a points total way behind the games played total.
"That is where the pressure lies on these players week in, week out now."
Steve Holland was in the Chelsea dugout, overseeing first team duties in light of Jose Mourinho being axed 48-hours before the game.
Allardyce said his players made it too easy for Chelsea.
He added: "I think we let them turn the style on, in many ways.
"We gave them room and space to show the ability they have got, there is no doubt about that.
"I'm disappointed in the way my team has performed and that we didn't make a better show of ourselves.
"And put Chelsea under more pressure. We made it easy and they took full advantage.
"The team underperformed, particularly in the first half.
"The players in the dressing room know that and they have to do better.
"I have to find a solution, if I can't find a solution in the squad I have to find a solution in January and see where we go from there."