The table-topping Bluebirds left St Andrews with a 1-0 victory courtesy of a somewhat fortunate 41st minute goal from Joe Mason.
""Without a doubt we deserved something from the game," the Blues boss said after the match.
"The goal we gave away was very unfortunate.
"Butland saves the shot but then the ball hit him on the back of the head and then on the back of the heel and rolls straight to Joe Mason to tap it in.
"We played some excellent football. It is horrible because we are in a business where picking up is vitally important but all the performances collectively was very good against a team which is going to get promoted.
"The only point I was made to the players was that in the second half we didn't pull the trigger as we tried to walk the ball into the net.
"I thought Nathan Redmond and Ravel Morrison made a good job of a difficult situation playing up front. But it is difficult when they do not have the natural instinct of a striker.
"They are tricky players who want to take someone on and bend the ball into the top corner of the net. Sometimes when you have that natural instinct as a striker you pull the trigger."