Mark Hughes was frustrated with his side's performance, and admitted his Bantams did not perform up to their standards, following this afternoon's Emirates FA Cup defeat.
Matty Daly's early strike condemned City to defeat and saw them bow out of the competition in the first round, as Harrogate Town took away a 1-0 victory.
The Welshman felt the Bantams could have done more, after conceding in the opening 10 minutes, and lacked in physicality to compete with their visitors.
He said: “We deserved to lose. We did not play anything like what we are capable of.
“We started slowly. We always talk about beginning on the front foot, but that did not happen. We just encouraged them.
“The early goal was perfect for them, as it allowed them to sit back and defend, wait for our mistakes and counter attack from them positions.
“Normally, you could get away with one or two players not playing to their full potential, but today there was more, and, ultimately we did not deserve to go through.
“We never got a real foothold in the physicality of the game. We were shrugged off the ball many times, and could not affect the opposition like they affected us.
“We have got to recognise that and react accordingly. The one positive is that we have a game on Tuesday, so we can address today straight away.”
Hughes was happy with the momentum his substitutes bought, in particular Abo Eisa, who the Bantams boss was pleased to have welcomed back to action at the University of Bradford Stadium, for the first time this season
He insisted “Tuesday cannot come quick enough”, as he hopes for an improvement from his side against Mansfield Town in midweek.
“Abo did really well and it was good for him to have some more minutes,” Hughes added.
“The changes we bought on definitely affected the game. (Scott) Banksy came on and did well and Ryan East showed good influence. They all gave us energy and changed the dynamic of the game. We just needed that goal.
“I was disappointed that I had to do that, and change personnel, because I am used to seeing the guys in possession of shirt performing.
“We did not play well today. It does not matter what level you are at, you will get beaten if you play like that.
“I wanted to have a good cup run, but we have to park this result.
“Tuesday cannot come quick enough. I know I will get a response, because we have to play better than we did today.”