"It was a very disciplined performance, but it is not easy playing two games in three days with limited resources," he said after the 1-0 away win.
"I felt that it was our day when James Walker made a good save late on but although we had a couple of anxious moments towards the end we held on very well.
"We have not got the monetary resources of Cardiff but we can compete by being organised and committed. Today we changed things around a little and fortunately it has worked.
"I felt that we were in control of the game throughout and Cardiff probably failed to create enough chances as the home team."