Rotherham went down 3-2 to Rochdale, for their first defeat at their new home, and assistant manager Paul Raynor said afterwards: "You can't play for 45 minutes and win matches."
Rochdale grabbed the lead in added time at the end of the first half through the veteran Dele Adebola, but Rotherham equalised on the hour thanks to an Alex Revell bullet header. And they went ahead five minutes later through substitute Daniel Nardiello.
But a controversial penalty from Bobby Grant in the 73rd minute levelled the scores once again and Kevin McIntyre fired in the winner with 10 minutes to go. Raynor, standing in again for banned boss Steve Evans, said he was "disappointed and frustrated."
He went on: "You cannot play for 45 minutes and win matches. The first half was very disappointing, but at half-time we shook it up, got a grip and went ahead, and I felt we deserved to do so.
"We were on the front foot, but then a bit of suicidal defending, when we gave away a free kick on the edge of the box, lets them in. We defended the free-kick and the corner and then Alex Revell dangled a leg and they get a penalty.
"When you are 2-1 up you cannot defend like that. You cannot concede three goals at home that is for sure. You cannot play for 45 minutes and that's what we did. We got punished for our mistakes. We are conceding far too many goals. We thought we had eradicated that, but they were down to individual errors. We shouldn't need to score four goals to win a game at home."
Rochdale boss John Coleman said it was a fantastic game for a neutral.
"It didn't feel good on the bench. I felt sick for 25 minutes in the second half," he claimed. "We grew up as a team. It was a bit of a watershed, a coming of age. We put in a hell of a lot of work and a hell of a lot of effort and played some good football as well and showed a lot of determination to come back from behind.
"We have got an ability to mix our game up. We warmed into the game. For the first 20 minutes I don't think we were at the races, but for the next 20 minutes we were the better team. We went in 1-0 right at the death, but we could have scored before that.
"After the break we expected the pressure and we knuckled down and we were disappointed to go behind, but then we got the penalty, and we didn't sit back for the 2-2 which I was delighted with. Once we got the winner there weren't many heart stopping moments in the last 10 minutes."