Mazi Sam Ohuabunwa is a member of faculty at the GOTNI Leadership Centre. Mazi Sam Ohuabunwa is a graduate of Pharmacy at the University of IFE ( Now OAU) graduating in 1976 . He did his Postgraduate training in Business and Organizational Management at the Columbia University,N.Y.,USA and the Lagos Business School, Lagos. He joined Pfizer Products Plc in 1978 as a Pharmaceutical Sales Representative and rose to become the Chairman/CEO in 1993.