Daniel Farke was left in reflective mood on Sunday after seeing his Norwich City side beaten 3-1 by Sunderland at Carrow Road.
Defeat to The Black Cats, the first of the Head Coach's tenure, came as the visitors made the most of their limited opportunities in front of goal.
Speaking to Norwich City TV after the match, Farke said: "First of all, we are really disappointed.
"We were the better team in the first half but it's about being good in the small things. For two situations we defended very sloppily and that was the reason we lost.
"Although it was a good performance we are not content. We're disappointed we lost the game."
Farke says elements of his team's display were pleasing, but that improvements need to be made at both ends of the pitch.
"It's about effectiveness," he explained.
"Sunderland were very compact and defence-orientated. The biggest problem was being disciplined and defending everything well.
"You have to do your defence stuff. We defended a goal-kick sloppily which was a simple situation.
"In the second half we put more pressure on them. We had a lot of chances but we have to learn from today.
"I'm not angry with the guys, I'm angry with the two situations. You have to be good in the small situations to win games which we will work on."