Personally,
The following strategies might be looked at to revive Australian cricket fortunes.
The aims are:
1. To develop individual batsmen who can score 200 runs or more in a first innings.
2. To develop teams that can consistently score 400+ runs per first innings.
3. To develop individual bowlers who can consistently take 4/5 wickets in an innings.
4. To develop bowling teams that can regularly bowl teams all out twice.
5. To develop Test players to be able to captain & understand how to aggressively lead teams to the above aims.
Strategies:
Nationally
1. That Australia must decide when it wants to play Test cricket and then set aside from a month before the first Test to have all players in Australia playing only the extended 4-5 day format of the game.
2. For foreign Test tours, again, all players need to arrive in that country a month before, playing only the extended 4-5 day format of the game.
3. To re-instate the formation of a regular Australia A side that plays, in the extended form of the game, other international teams both in and outside of Australia.
4. That all 1-day and T20 matches are played after the Test series.
5. That any World Cup series should be scheduled to be completed at least one month before a Test series commences.
6. Key people need to be placed into off-field positions. Names to be considered could be M.Taylor, Hohns, Buchanan.
State
7. For all players, Test & state players, playing in all the Sheffield Shield games prior to and through the Test series.
8. In Domestic seasons where there is a Test series scheduled, that the first class itinerary should officially begin with extended 4-5 games only.
9. Zero points for extended games that are not decided by a 2nd innings win.
Local
10. That local associations, especially in junior divisions, should play only 2 day games from October till January, with 2/3 day finals in February. 1-Day & T20 games & finals in March & April.
11. Zero points to teams that may have a higher score but did not successfully bowl the opposition out.
You may recognise that some of these changes are returning to old rules & procedures but sometimes we learn that moving forward doesn't provide the best result.
I welcome others' suggestions on improving Australian cricket at all levels.