"We are very disappointed because it is a very dangerous game to sit on a 1-0 lead," he said after the 2-1 home defeat to Bolton.
"I don't think our mental approach was right from the start. We have been away from home for the last two to three weeks, when you get into the habit of sitting back and the onus was on us to take the game forward which we didn't do.
"On our second-half performance alone we didn't merit winning the game and it's going to be a learning curve for all of us.
"They were two soft goals to concede and both came from set-pieces.
"We had the opportunity to clear the ball for the first goal and I have spoken to the players concerned and hopefully it won't happen again.
"What we have to do is grab the game by the scruff of the neck because there were lots of opportunities for us to clear which we didn't do.
"I felt a second goal would have been enough to finish the game, but we didn't get it and we got punished as a result."