Jos Luhukay said Wednesday have plenty of work to do in the build-up to the season after Friday night’s 1-0 warm-up win at Lincoln.
The Owls manager said: “We lost a lot of balls and were too hectic. We only had two chances in the first half.
“I thought we started well in the opening 15 minutes of the second half. We scored a fantastic goal through Fernando.
“But after that we didn’t have any really good chances to score a second goal. It was a very good moment for the changing from training to games but we now have a lot of work to do.”