"As an opposition player, when a head coach starts speaking about you from the opposition, it's not a bad thing," Broad said. "It means they are in your bubble and they are not enjoying playing against you. Which is what professional sport is all about.
"Lehmann will try mind games. I see he had a go at Trotty's technique.
"If we believed everything that came out: dour cricket, captained poorly, we don't bowl our overs quick enough, lack adaptability. But we won the series 3-0.
"So if we did everything they say we can't, then surely we'd win the two series 10-0."
Broad said he had no issues with Warne and the leg-spinning great was just trying to help the Australian side.
"It's a PR game. I see Warne as working for Australia. We are not listening to what he says," he said.
"It's like a big fight, all the trash talk that goes before it. We don't need to get involved in that.
"We're very happy with where we are as a team. We've got some skilful players, guys who are hungry to perform in Australia, we don't need to comment on Australia."
Broad incurred the wrath of Lehmann when he refused to walk during the first test at Trent Bridge after edging an Ashton Agar delivery off the fingers of Brad Haddin's gloves and into the hands of Michael Clarke at first slip.