Birmingham City boss Alex McLeish admitted there is still plenty of room for improvement after Tuesday's Carling Cup second round victory over Southampton.
Veteran midfielder Lee Carsley netted late on to avoid an upset at St Mary's as the Blues came from behind to beat League One Southampton.
Adam Lallana had opened the scoring for Alan Pardew's side in the 50th minute as he curled home from the edge of the box.
But the Premier League side fought back late on and after Lee Bowyer had equalised, Carsley slotted home the winner with just 10 minutes remaining.
"It helps confidence and creates good habits," said McLeish.
"The performance I'm not entirely pleased with but I didn't expect it to be smooth as we made a lot of changes and rotated the squad.
"But we soldiered on. When we went behind I thought we were going out of the cup. But I felt we had goals in us.
"If we'd gone two behind Southampton would have seen it through. But we got a lot stronger.
"It was a classic Bowyer goal and Carsley has played a captain's role and got the winner."