He said: "I thought we played well for most of the first-half and didn't deserve to be behind, but we just haven't made their 'keeper work hard enough.
"He only had to make one real save and we have to better than that, especially at home.
"We played with our hearts and not our heads. There was plenty of effort and endeavour, but a few key players didn't perform to their normal level.
"The lads have worked very hard since the day I walked in the door so I'm not going to be too hard on them.
"There are lots of things to put right and we will keep working on them on the training field. We will go away, lick our wounds and bounce back."