IAN Holloway admitted Millwall "did not respond well" to a change of formation in last night's 3-1 defeat to Sheffield Wednesday.
Holloway switched to three at the back in an attempt to get his side back into the game but the Lions got progressively worse after the change.
"The information that I wanted to give to the players didn't get out there," said the Lions boss. "It is my fault, I shouldn't have changed it.
"They weren't ready for that but you've got to roll the dice. We've done it earlier on in the season and come back and managed to score.
"Ricardo Fuller was one who got two goals coming off the bench against Wolves but unfortunately that didn't happen again.
"We didn't respond well to the change of shape and I will hold my hands up for that.
"I changed the shape of the team – because we weretwo down – to try and go from back to front a lot earlier and put them under pressure, but then it was awful."
Millwall missed a hatful of chances before Lewis McGugan opened the scoring for the visitors.
"When we let a goal in we don't look the same team, so we've got to get stronger than that," added Holloway.
"Every time we let in a goal here it instantly feels like doom and gloom. We have to be better than that for our supporters.
"At the end of the day you make your own luck in football. People stopped doing the right things after they scored, and their second goal came far too quickly after the first.
"Like I've said before we look a very good side when we get the first goal in games, but for some reason it just hasn't happened for us at The Den recently.
"We have had two or three really good chances but couldn't get that all-important first goal, which can be so key in the Championship.
"We have to bounce straight back at Rotherham on Saturday. Our away form has been good so we have to continue that."
Millwall were booed off at full-time and Holloway said he accepted the reaction of the crowd after another home defeat.
"I can understand the crowds' reaction," he said. "But for me a huge part of that game, apart from scoring, was as good as we've been.
"I'm sure their manager will be very, very pleased with that score and he will be rubbing his hands on the way back up the motorway thinking how on earth did that end up like that."
Martyn Woolford (bruised ribs) and Stefan Maierhofer (tight quad) are being assessed by the Lions' medical staff.