Who will lead the World Trade Organization? A political heavy-hitter from Nigeria is shaking up the race to lead the World Trade Organization but will the rest of Africa rally behind her candidacy? Ngozi Okonjo-Iweala, a former finance minister and corruption-buster who now sits on the board of Twitter, to succeed Brazil's Roberto Azevêdo as WTO director-general. Okonjo-Iweala's critics argue her expertise lies more in finance than trade, with one diplomat saying she was"not a trade name." so here's what she has to say: