Darren Ferguson bemoaned a “lack of quality at both ends” after watching his Peterborough side go down 2-0 at Wigan in Sky Bet League One.
Posh lost their fourth match out of four this season in all competitions, after finding themselves two goals down inside half an hour.
Christian Saydee opened the scoring for Wigan in the fifth minute with a bullet header after great work down the right-hand side from Fraser Murray.
And Wigan skipper Jason Kerr nodded home the second goal on 28 minutes after Posh goalkeeper Vicente Reyes had parried out a volley from Callum Wright.
Indeed, only poor finishing from Wigan prevented Posh suffering an even more convincing defeat at the Brick Community Stadium.
“We’ve spoken at length to the players about the need to get the basics and fundamentals right, or far better than we have been doing,” said Ferguson. “But once again I’m repeating myself.
“For the first goal, we lose a tackle, we don’t stop a cross, and all of a sudden it’s a goal.
“These are things that, unless we start taking them out of our game, it’s going to continue to be a problem.
“It’s just so easy for the opposition to score goals at the moment.
“We get ourselves back into the game, without scoring, we knew where the spaces would be against their formation.
“But, and I’m saying the same things, in both boxes we just don’t have the quality at the moment.
“The second goal, again it’s from a set-piece, we lose the first contact, and then we lose the second contact.
“And at the other end, we had a lot of the ball in good areas, but we just lacked the quality to break them down.”
The only downside for Wigan boss Ryan Lowe was that his side did not win by more goals.
“I’m obviously pleased…three points, two goals and a clean sheet,” he said.
“I do know we need to be a little bit better with the ball, on the turnovers, but it was never going to be easy against a good team.
“Yes, they haven’t won any games yet, but you can see what Darren’s trying to do, and there’s some unbelievable quality in there.
“When we score the two goals, it gives us that momentum, and I think we should have closed it out in the second half with the chances we created.
“The goalie’s saved a couple, one’s gone over the bar, one’s gone just past the post…but I was pleased on the whole with most of it.
“We were really good with the ball for an hour, the last half-hour not quite as good, but you take whatever comes your way, and to hold on for the clean sheet was very good.
“Of course we can still be better, we still need to do more, but what I will say is that the fans really got behind us, especially in that last 10 minutes.
“At 2-0, sometimes you can think the game is won, but it’s never won, it’s a tough scoreline.
“We had to put bodies on the line at the end, we cleared one off the line, and it was a real collective effort.”
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