Grant McCann admitted his side only had themselves to blame as 10-man Hull City were held to a 1-1 draw with Blackpool.
Mallik Wilks drilled the Tigers ahead shortly after half-time but Reece Burke’s 77th-minute red card shifted the momentum, with Jerry Yates firing home a corner four minutes later.
And the boss was far from happy with the build-up to the sending off and the defending for the Seasiders’ equaliser.
“We haven’t taken the three points, probably because of us,” said McCann. “It’s our own downfall really.
“We had opportunities to be one or two nil up in the first half that we didn’t take.
"The Mallik chance, Gavin Whyte’s ball across the box we didn’t get on the end of, (Jacob) Greavesy’s header.
“I thought we were in control of everything we were doing.
“And then it was a moment of madness – one moment of madness. It was unlike us.
“A sloppy bit of play in the middle of the pitch – Richie Smallwood’s played it behind Reece, he’s tried to recover, red card.
“Even still, we still shouldn’t concede off the corner. It’s really disappointing and poor from us. We have to learn from that.
“It’s a cheap goal to concede. You still shouldn’t concede that goal with eight or nine men on the pitch, never mind 10.
“We’re frustrated with that.”
McCann says there will be particular emphasis on practicing set-pieces in training this week to eradicate the mistakes of recent weeks.
“We need to get back to work on the training ground and work even harder on defending set-plays,” “McCann admitted.
“That’s three games now we’ve conceded from set-plays: Sunderland, we conceded from one; Fleetwood, we’ve conceded from a short free-kick; and today.
“It’s cost us points in the last two league games.
“We’re looking really good in terms of our shape, our organisation, our threat. Yes, we could score more goals and take more of our chances.
“But you only need one goal to win a game if you don’t concede and we need to get better at defending set-plays.”
McCann handed a debut to Cardiff City loanee Gavin Whyte and was pleased with what he saw from the 24-year-old winger.
“He did well,” said McCann. “Gavin hasn’t played for a while so we always thought, ‘can we get him to 75-80 minutes?’
“Excellent in terms of the way he gets at people and he’s calm on the ball.
“He’s been involved with the goal as well. It was a great bit of play - quick feet to cross, good play from Josh (Magennis) and a great finish from Mallik.
“He’s only going to get better and better.”
Fellow new signing Jordan Flores was not involved in the matchday squad and McCann revealed the former Dundalk man is still working on his fitness.
“He’s trained about seven days in a month so we’re just taking our time with him,” he commented.
“There’s no rush. We don’t want to expose him to injury.
"Jordan’s trained hard this week and trained hard again today. We’re trying to get him up to speed as quickly as possible.
“He’s looking great in training, we just need to get him sharper. Jordan understands there’s a plan in place to get him up to speed.”