Yoruba man (Festus Adedayo) was a top govt official in Enugu under Nnamani (LONG BEFORE AN IGBO MAN BECAME ANYTHING IN LAGOS)
Anther had been in Abia (I forgot his name now??) under Orji Kalu
An Edo man (Chief Tito Asekhame) was there in Imo under Ohakim
A Yoruba (Pst. Bunmi Babs - Special Assistant) were there until the recent sack of everyone by Okorocha

Thanks Chris-OD for providing this information and making this qualifying statement

People come and people go. Then (and until recently) it was Yorubas/Edo in Igbo govts. Now its the reverse (Ben Akabueze in Lagos). Do you know what will be tomorrow? Will Ben be there for ever?

https://www.nairaland.com/1398073/igbo-pastor-lagos-commissioner-economic