Eddie Howe knows Burnley could pay the price in the race for the play-offs if they do not make their dominance count after a goalless draw against Derby, which left Nigel Clough delighted.
The Clarets, currently 12th in the Championship and three points off the top six, looked the most likely winners and thought they had secured the points on 80 minutes, only for Rams goalkeeper Frank Fielding to make a remarkable save to deny Jay Rodriguez.
It was a fourth clean sheet in a row for Derby, who sit one place and a point above Burnley, and Howe wants to see a killer instinct from his forwards.
"We felt we created enough chances to have shaded it and taken the three points, but their goalkeeper made a couple of good saves and we missed a couple of good chances," he said.
"We started on the front foot, but you could see how difficult it was for both sets of players with the weather conditions - it restricted the attractive game that we wanted to play. We did have to adapt slightly and that was a real shame. We didn't do enough to break them down in the end.
"The back four are really well drilled and organised, and they are getting better and better. All of them played their part and if you keep clean sheets you don't get beaten so it's a good step.
"We created enough. Their goalkeeper's made a great save from J-Rod [Rodriguez] and we missed a couple as well.
"It's not the three points we wanted, but it's a positive step, The league is so tight. But if we want to get into the top six, then we have to win games like this."
While Derby have one of the meanest defences in the Championship, making their mark at the other end has been the problem with just 31 goals scored this campaign.
But boss Clough is adamant his side can do more than just shut teams down, as he said: "We're delighted with the clean sheet, but we're also delighted with the manner of the performance," he said.
"Sometimes when you come away from home it can be a negative 0-0. I didn't think that was the case. We tried to take the game to Burnley.
"Frank's not had a lot to do, but the one save he did have to make was a brilliant save - it makes the difference between keeping a clean sheet and not."