Wade Elliott's 73rd minute goal booked Blues their place in the 4th round at Molineux on Wednesday night in what was their 36th match in all competitions this season.
"It was a satisfying result. Wolves made more changes than us but to come here and win was excellent," the Blues boss said after the game.
"We had to defend very well at times and our two centre-halves Curtis Davies and Steven Caldwell were excellent and we needed them.
"But I thought we showed enough on the ball to be a real threat at times and in the end we just deserved it."
"We are trying to be positive about everything.
"We have played on average eight more games than most teams in our division, but at this moment there is a real good spirit in the team.
"There is a group who want to play, no-one has come in and told me they are tired. That is where we are at this moment.
"We try to speak positively not to mention the amount of games. It is one after another.
"I've got a group of lads who enjoy playing football."