The 43-year-old replaced Mickey Arthur just two weeks before the beginning of the Test series and he admits that it isn't just the players who must improve ahead of this winter's return series.
"It was a good learning curve for a new coach, wasn't it?" Lehmann told reporters. "You know, a jovial setting but you've got to learn from that. I've got to learn and improve from that. The players aren't on their own in trying to improve.
"Coaches have got to improve so that's something I've got to get better at. I've had a chat with [Broad] already. We just move on.
"I'm still loving it, it's a great job. I'd like to win a Test match though, but it's a fantastic job."
Australia must now focus on the limited-overs contests, with the first Twenty20 match taking place in Southampton tomorrow.