Too often when management stuffs things up - management blames the workers.
Cricket is a team game played by individuals (I stole that from baseball!) - every player can help the team by scoring more runs, taking more wickets, catching balls etc - and btw it would help if the selectors had come up with a spinner or two who have some actual experience taking wickets in first class cricket plus perhaps, perhaps the rotation policy hasn't worked so well.
Traditionally, the role of the coaches and captains is to help players play a bit better.
Let's think about the rotation policy; essentially, it doesn't matter how well you play we might stand you down anyway. Not conducive to team cohesion and spirit.
Clearly, the homework issue is a furphy.
The team is down 2-0 against India, the management has panicked. Never a good sign.
The 'straw that broke the camel's back' and 'line in the sand' excuses just tell us that Mickey Arthur and Michael Clarke haven't been able to bring the team together.
Getting rid of the 'troublemakers' won't solve the morale problem.
Perhaps, a good place to start would be some honesty from those responsible for managing the team.