After their 3-0 success at Coventry at the weekend, Johnson made just one change to his side playing Chris Weale in goal but the City manager admits that he may have to 'shoulder' some of the blame for the defeat.
Johnson said in a post match interview with Bristol City World: "Maybe I made the mistake of playing the same team after they put in all the effort on Saturday. We certainly didn't look like we had out legs today and I'll take the responsibility for that.
"I though we could go into the game on the back of a great result and play the same but it didn't work like that. We'll have a look at everything."