Dave Jones was left frustrated after his side failed to capitalise on the one man advantage over Reading. City attacked with pace and purpose in the first half but never got going in the second period and allowed Reading to take a point from the game.
"Some of our football in the first half was superb, but then we lost patience," he said.
"You have to pull defenders out of position and not lump long balls up to them. We switched off at our own corner and let them break for the first goal and then a lack of concentration cost us the second.
"We fell into the trap of trying to force the issue, but I am not too disappointed because of the quality of football we played.
"Reading were a dangerous side even with 10 men and we had to make sure we weren't caught on the break."
Meanwhile Steve Coppell while happy to get a point after seeing Andre Bikey sent off, was unhappy with the red card.
"I was very happy to get a point and never question the character of the team," said Coppell.
"But I wasn't happy with the penalty or the red card. I am thankful to Marcus Hahnemann for keeping us in the game.
"It looked to me as though Andre Bikey had won his header and he insists that he did nothing wrong. The referee told me he had thrown a punch but I can't see how he could do that when jumping for the ball.
"Under those circumstances it was a terrific point."
Reading remain 3rd, City 6th.