England suffered one of their heaviest-ever Ashes Test defeats, when Australia hammered them by 381 runs at the Gabba with a day to spare to go one-up in the series.
The tourists collapsed under the blistering pace of Mitchell Johnson and were all out for 179 late on the fourth day after they were skittled out for 136 in the first innings.
But Lehmann, who played a big part in Australia's opening Test ambush with his individual plans for the English players, is expecting a far different match next up against the stung tourists.
Lehmann conceded Johnson's momentum after taking nine match scalps in Brisbane could be stifled by the slower, batter-friendly conditions on the Adelaide drop-in wicket and said Australia were a long way from a finished product.
"We're miles off. We want to keep improving," he told reporters after the Gabba win.
"We played well. The next Test is a different kettle of fish. We have some good plans, we like what we are doing but we start from scratch in Adelaide,” he said.
"We may have to prepare a different way. (Johnson's momentum) depends what we get in Adelaide. We don't know. He bowled beautifully in Brisbane. He was aggressive, he had bounce had confidence," he said.


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