Derek Adams was disappointed by City’s lack of grit and determination, as his side fell to a 2-0 defeat at Carlisle United.
Adams attributed his side's poor second-half display as the reason they were unable to achieve anything from the game, following a difficult afternoon in Cumbria.
The Bantams failed to register a shot on target in the second period, frustrating manager Derek Adams after a positive first-half display.
He said: “We did not show enough grit and determination to get the equaliser in the second half.
“That is not like us. In games gone by, we have been able to get ourselves going, but we simply did not create any opportunities in the second half.
“Our second-half performance was not good enough. Their goal before half time took the sting out of our players, and we did not recover.
“We really fell down a slope in the second half. To not have a shot on target is disappointing.”
The Scot stressed that the injuries accumulated in the game was not an excuse for a frustrating second-half showing, suggesting his side should have been capable of much more.
Adams insisted he understands the supporters' disappointment - with over 1,200 City fans making the trip to Cumbria.
He added: “To lose two players to injury is a setback, as it limits our options to make changes. T
“The players we had on the pitch, however, should have been capable of scoring today, or at least having a shot on target.
“In the first period, we looked like a team full of confidence but that second-half performance was not good enough.
“In the end, the first-half performance was good but the second half was not and the supporters are rightly disappointed.”