Derby Boss Colin Todd says "a lack of cutting edge" cost his side a victory over Fulham on Wednesday evening at Pride Park.
He said: "Even though one or two players had indifferent spells tonight we should have made sure the game stayed at 0-0 because that would have meant a point for us. If we weren't going to nick it we had to make sure we finished on level terms, and we didn't do that.
"At times we played too many straight balls, long balls, where in recent weeks we have been getting the ball down and playing through midfield.
"Overall we didn't create enough chances. We didn't produce the quality that you need to score goals at this level. Tonight we have missed out on a vital chance to make up some more ground.
"We played reasonably well but didn't move the ball well enough. We just didn't make it happen where we needed too, but I can't fault the effort."
Meanwhile Rams goalkeeper Mart Poom also voiced his disappointment adding:
"We should have created more chances. "We were determined to defend properly and knew we would not have many chances but our final ball wasn't good enough.
"Fulham are always dangerous on the break and they had a lot of joy up the left flank in the second half. That was where we were eventually undone. Petaco tried to play a low cross, the ball hit his leg and went into the net.
"It was unfortunate for him but we should have done more for ourselves and created opportunities at the other end - especially at home.
"We can play better than that. We wanted to get something from this game. But it was not to be."