He was given chances and failed. Domestic cricket is the bloke's best level.
he didn't fail at test level
in the 50 over game, i don't know why he was selected, was a good without being brilliant player at that level.
in FC cricket, well ahead of many selected before him.
As for Lehmann, was selected at the end of his career for national duties and performed well, Australian cricket never saw him at his peak.
Slater and Taylor....two slightly above average players. Taylor was a good captain which added to the reason of his selection.
Steve waugh and Allan Border were far superior captains.
Border had rubbish teams and carried them into form. S.waugh rarely let his team have 4th innings collapses and the concept of the 'dead rubber fail' was virtually eliminated under his tenure.
Taylor's captaincy was carried by a brilliant team, with a brittle top order that was prone to collapsing and failing in dead rubbers.
S.waugh got the most of his team and turned the aussies in marauding beasts in the cricket field.
There was a lapse in fitness in the aussie team i think from when border retired to when s.waugh took over.