African Union leaders have chosen Chad's candidate as the next head of the AU commission. Chadian Foreign Minister Moussa Faki Mahamat beat Kenya's top diplomat Amina Mohamed. Outgoing commissioner, Dr Nkosazana Dlamini-Zuma, stayed in the job an extra six months after leaders failed to agree a candidate in July. We spoke to Professor at the Department of Political Science , University of Pretoria Dr Siphamandla Zondi