According to analysts, Nigeria's the six geopolitical zones appear to have benefited from power sharing.   

All the zones, North-West, North- East, North Central, South-West, South- East and South-South are adequately represented at the centre, they say.

• President, Mohammed Buhari is from Katsina State, North-West zone
• Senate President Bukola Saraki hails from Kwara State, North Central zone
• Yakubu Dogara is from Bauchi State, North East Nigeria.
• Deputy Senate President, Ike Ekweremadu, is an indigene of Enugu State in the South-East zone.
• Deputy Speaker of the House, Yusuf Lasun, and Vice President Yemi Osinbajo are both from the South-West.
• The South-South is represented in the capacity of John Odigie Oyegun, National Chairman of the All Progressives Congress, APC, the ruling party.

You might disagree with this arrangement- it's allowed.