Bhagavatam cantos. Arrangement

Bhagavatam cantos seem to go in some sort of order.

1. Glimpse of what is to come
2. Who should try to get devotional service, who is God.
3. Association with devotees. Fearlessness.
4. Repeated birth and death. Illusion due to relationships. Vaishnava aparadha.
5. Aham mameti.
6. Curses are mercy.
7. Dealing with demons. Giving up lust. Preaching. Setting an example by being a devotee and following duties.
8. Surrender. Giving up lust.
9. Tolerance. Falldowns. Dynasties preceding Krishna.
10. Krishna. Sambhoga. Quick progress through lilas.
11. Krishna's instructions. Vipralambha.
12. The end.

Krishna makes certain souls responsible for the liberation of His devotees: Indra killed Vritrasura and suffered for it - it was all meant to be.