Daniel Farke says a lethargic start for Norwich City against Burton Albion on Tuesday night cost them the opportunity to take a stranglehold on the game.
The Canaries were held to a frustrating 0-0 draw by a determined Brewers side at Carrow Road, despite largely having the better of the contest.
"We are disappointed with the result," Farke told Norwich City TV after the match.
"We weren't aggressive enough and didn't move the ball quickly enough. There were too few movements in general.
"It's always difficult to create chances against a team who tries to take time away from the clock from the first second. They defended with ten players around the box.
"We had two or three good chances. We needed to use them but we didn't."
Despite the dissatisfaction at not taking all three points, Farke pointed to the positive of his team collecting consecutive clean sheets in the Sky Bet Championship for the first time this season.
"We were really disciplined and good in defending," he added.
"In that area, we were really good. We had to invest more in order to create chances though, which is the reason we didn't win.
"You always have topics, that's quite normal. We have things to work on, and that's what we're planning to do.
"Normally we're able to create chances and score goals. I'm sure we will improve."