Daniel Farke felt his Norwich City side gave themselves too much to do in their defeat at Luton Town on Wednesday night.
The Canaries conceded three times at Kenilworth Road, the first time they've done so in the league this season and Farke said, defensively, his team weren't at the races.
Speaking to canaries.co.uk, he said: "First of all, congratulations has to go to Luton. They were here with a spirited performance.
"Our setup at the moment, because of our personal situation, is not that easy in terms of creating chances and scoring goals.
"We rely on, at the moment, to be absolutely solid in terms of defending. Especially, in a tough away game, you have make sure that perhaps you just score one goal or something like this and you have to make sure you're clinical and solid in your defending.
"To concede three goals in our situation, of course it was too much to travel home with some points. We have to accept this."
Farke didn't want to be too critical of his team in an attacking sense, as they were without a recognised striker, with Przemyslaw Placheta this time leading the attack.
"We started with a similar setup at Stoke in our offence with Josh Martin on the left and Emi Buendia on the right and Marco Stiepermann in the number ten position. We had Teemu Pukki up front against Stoke and we tried to use Przemyslaw's pace, similar to Teemu's, up there today against Luton.
"There were some good scenes, he [Placheta] won the penalty for us. The problem was not our offensive game, that was definitely alright. We conceded too many goals today, that was the main problem.
Farke switched things up in the second-half but said he was restricted by the lack of senior options on the bench, with a number of players still out injured.
"We didn't want to accept the loss and we changed things several times. Our hands are a bit tied in individual terms so we had to change our base formation a few times. We tried everything in this setup without a proper striker.
"Luton defended with everyone, even in our normal setup it would have been unbelievably difficult to turn the game here. Then of course, it was more difficult in our setup."
Away from the result, the match signalled the return of supporters to football grounds as 1,000 home supporters were housed at Kenilworth Road.
"It's definitely good to have fans back. They played their part tonight in some key decisions today from the referee.
"But we lost the game. No complaints from my side, we know we need to defend certain situations better."