Just look at these figures

1. Vice President -North.
2. Senate President -North.
3. Speaker House of Reps – North.
4. PDP National Chairman – North.
5. Head of Service – North.
6. INEC Chairman – North.
7. Inspector General of Police – North.
8. CBN Governor – North.
9. Chief Justice of federation – North.
10. President Court of Appeal – North.
11. EFCC Chairman – North.
12. President Federal high court – North.
13. National Security Adviser – North.
14. Chief of Defense Staff – North.
15. Controller, Customs Service – North.
16. Controller Prison Services – North.
17. Richest man in Africa – North.
18. 85% of Petroleum Marketers in Nigeria – Northerners .
19. 80% of Oil Block Owners in Nigeria – Northerners.
20. 99% of beggars in Nigeria – Northerners
21. Boko Haram – North.
22. Anti-Biafra – Northerners.
23. Yet, the Poorest states in Nigeria and Educationally backward areas in Nigeria are in the North.
24. 8 former heads of state(Tafawa Balewa, Yakubu Gowon, Murtala Muhammad, Shehu Shagari, Buhari, IBB, Sani Abacha, Abdulsalam Abubakar)- North.
Now ASK yourself, who is the problem of the Northerners?

The answer is possibly not a "WHO". And don't think listing all these positions above will possibly curb the menace that started several years ago.
The Northern part of this country should have been the safest haven, the most civilized and well learned but my guess would be greed on the part of previous leaders made this unrealistic.

From the aspect of improper or no education, almajiri, (Pls don't mention Islam), greed and so many reasons, these region has really been in the dark and I tell you, the current crop of leaders they have now, wouldn't stand as Panacea to their many problems.