Complex sentence: Mazi Nnamdi Udoh was appointed to the position on 20 February 2009, prior to that he has held numerous posts as General Manager project and surveillance, Special advisor to the the then Minister of Aviation Professor Babalola Borishade e.t.c.
Split into simpler sentences: Mazi Nnamdi Udoh was appointed to the position on 20 February 2009. Prior to that, he has held numerous posts as General Manager project and surveillance, Special advisor to the the then Minister of Aviation Professor Babalola Borishade e.t.c.