Cardiff boss Dave Jones felt his side were the architects of their own downfall in the 2-0 defeat at Ipswich.
An own-goal from young defender Adam Matthews and Jason Scotland's second goal for Town saw the hosts leapfrog City into second.
"We started brightly but the second half was not the best," said Jones. "It had 0-0 written all over it as I didn't think they were causing us problems but you can't give the ball away the we did.
"There is no hiding place in this world and at this level. It is a good job [Matthews] is a young player and he has a long time to get over it.
"We all score own goals but you are taught as a young boy to head the ball high and wide and away from goal. He has been caught again for the second goal.
"A lot of players, not just Adam, didn't step up to the plate. It is one you will mull over many times but you can't let it affect you. We haven't got time to mollycoddle anybody so he has to learn quick."