David Wagner lamented a 'horrible afternoon' for his team as they suffered a 6-2 defeat to Plymouth Argyle in the Sky Bet Championship.
Norwich found themselves 4-0 down at half-time at Home Park before eventually losing 6-2.
A horrible afternoon. A horrible result, conceded six goals which is very, very painful. Unfortunately, we were not able to give the great away support anything, which I'm very sorry for," Wagner admitted.
"The story of the game is quite easy, we gave four counter goals away, further counter chances. It's very unusual for us that we were so vulnerable on the counter-attack. The first goal was offside, the player wasn't offside that blocked Gibbo and this is why the other player was able to score.
"The second one we have not done our job in the set-piece where we had to have two players in the wall and only had one. Then we conceded four counter goals. The goals we conceded were just not good enough. This is why it really hurts and it's something we have to correct quickly."
The head coach also outlined areas where he felt the performance lacked, leading to the heavy defeat.
"It's my job to lift the dressing room, but the players are smart and intelligent enough. If you make mistakes like we have done, played in areas where we should not play centrally, where we overload and picked up a pass where the player was not free, then they hurt us on the transition where our rest defence was not in shape.
"We really lost our head which is what really annoys me. You can get a referee decision, you can concede a goal, you can make a mistake, but you can't lose your head. That's what happened today."