Nigel Pearson criticised some of his players for going invisible in a hugely disappointing defeat at St Andrew's but admitted he needs to shoulder some responsibility.
The visitors were way off it from the first whistle and fell behind inside two minutes when Auston Trusty scored from a corner. It immediately set the tone for the game and City were lacklustre in their play, lacking the energy and intensity that they have prided their performances on this season.
In a similar trait to last season, set-pieces proved to be City's Achilles heel and they were punished on the stroke of half-time when Trusty reacted quickest when his own header cannoned back off the post. Fellow defender Dion Sanderson put the game beyond doubt with 15 minutes to play when he fired in from close range following a corner from the right.
