The problem with African politics, is that it is based on democracy (sometimes), but run as a tribe. Everyone not part of the tribe gets excluded and marginalized. Africans must decide if they want to use democracy or not, because it seems that are only playing the democracy game to get money out of the west.
TB's idea of Africans doing self policing, is a good one, but failed with its first test, i.e. Zimbabwe. Mugabe destroyed everything western in his country, in order to start "fresh", and he did a good job. Unfortunately, Africa does not have a good record of recovering after this type of "cleansing". Africa should learn that not everything left over from colonialism is bad, and that building onto what you have been left/given will only help. If you want to change everything, that's fine, but make sure you are able to put a working system in place before pulling the plug on the old one.
Africa will always fail, because it fails to realize that they are not depended on the west. Leaders must stop planning for their own future, and start to plan for their countries future. Work with other African countries, not against. How many African countries export (food and other necessities) to other African countries? None I know of (SA export electricity though). Politicians in Africa should stop fighting with each other for handouts, and start to work together.