Jos Luhukay said Wigan fully deserved their 3-2 win over Wednesday and called for an improved performance at home to Hull next Saturday.
The Owls boss said: “We did okay going forward, more so in the second half, and we could have got an equaliser.
“But while I would have taken that, I think that would have been hard on Wigan because they were the better side, there is no discussion there.”
He added: “I think it is true that we have to do better than what we saw today. This is not the kind of performance we have been building up in the weeks we have had together in pre-season.
“In the defence we allowed more shots today than many of the games last season.”