Australia's bowlers restore order but batting headaches remain ahead of South Africa tour

MELBOURNE, Aug 24 : Normal service resumed for Australia as their formidable bowling unit hit their marks in the second test against Bangladesh in Mackay but questions remain over a batting order that continues to misfire at the top.

Australia's innings and 51-run victory was a strong comeback from the Darwin defeat as pace leaders Mitchell Starc and Pat Cummins blasted away the tourists' batters in a timely reminder of their quality ahead of a tough, three-test tour of South Africa in October.

Australia's batting has left selectors with a headache, though, and struggling number three Marnus Labuschagne may be nervous about his place in the squad for South Africa.

South Africa-born Labuschagne was already under major scrutiny after two poor dismissals in Darwin before he was bowled for four in Mackay by Shoriful Islam, the ball catching his thigh pad before hitting the stumps.

Upon his dismissal, Labuschagne gave the look of a man forsaken by the cricketing gods and later took scissors to his thigh pad in an unusual gear modification.

But behind the theatrics was a batter who had strayed far across his crease and given Shoriful a look at leg stump, further evidence for pundits of a need for change.

"There's some technical deficiency there, but he's making the margin for error for the bowlers too great," said former Australia captain Ricky Ponting.

"It's well and truly time to have a look at somebody else."

Labuschagne's exit would be the second top-order batter dropped in two matches after opener Jake Weatherald was dumped in the wake of the fiasco in Darwin, where Australia fell to a shock nine-wicket defeat.

Weatherald's replacement Matt Renshaw hardly inspired in his first test in over three years, falling for eight with a