David Weir was quick to express his disappointment at Saturday's 2-0 loss at the Coral Windows Stadium, but conceded the finishing of Bradford's Nahki Wells was the difference between the two teams.
The Bermudian international striker netted late in each half to ensure all three points stayed in West Yorkshire and afterwards Weir bemoaned the Blades inability to grab the game by the scruff of the neck prior to Wells's first-half opener.
The Gaffer commented: "Nahki (Wells) is a top player and his two goals were ultimately what settled the contest, in what was a very tight game.
"We didn't take our chances that came as the first-half progressed, then Bradford found that extra special moment to break the deadlock on the stroke of half-time.
"That made it more difficult for us and enabled Bradford to defend their lead. So in the end that extra bit of quality up front consigned us to a disappointing defeat.
"I thought it was a decent game of football, a keenly fought, competitive local derby. It was always on a knife edge, we had our chances to get our noses in front and I knew the first goal, as it often is in this league, would be crucial.
"The bottom line is we are dissapointed to lose. I am not looking for excuses, we must work hard and with that will come a further improvement.
"We have to become more consistent in our play and also be more threatening and clinical in the final third."