Whether Ange keeps his job post-tournament now comes down to making the Final and performing well in it.
If Australia go out in the quarters against China, then you'd expect him to lose his job.
Probably will face Japan in the semi - so his job will hinge on the quality of that performance and if they make the Final.
Ange has a pretty average record so far results wise - though he's working with a squad that's not nearly as good as the Socceroos of 2000 to 2010 with Kewell, Viduka, Schwarzer etc.
Ange's Socceroos Record to Date:
http://int.soccerway.com/teams/australia/australia...
Played: 15 Won: 4 Drew: 2 Lost: 9
A lot of tough games among those - but he also lost a friendly to Qatar, drew with the UAE etc.
Of his four wins, one was a narrow 3-2 win over a very average Saudi side in London and two were against average Kuwait and Oman sides the last week in the Asian Cup.
The only decent side he beat was Costa Rica pre-World Cup (November 2013) but that was at home against a weakened Costa Rica side trialing players like Cunningham and Hernandez and missing most of their Euro stars like Bryan Ruiz (Australia had a full strength squad).