As much as a change in the leadership structure of most African country can help Africa manage and become fully responsible for the way her resources is being used, the military aren't different from the civilian that have at one point or the other been involved in African leadership.
A military government that lacks proper goal on how to make the African economy better will in the long run become a simple tool in the hands of external influence who have mastered the art of willing things to her favour. The revolution that can make Africa a country that's completely in charge of her resources will in reality spring from civilians that are from the winds of the youths and that has the potential and will of implementation of policies that will make Africa better.
One of the major issue most African countries are facing is the lack of continuity in the leadership structure the operate. An administration comes in and comes up with a developmental policy and another comes up with something entirely different without improving on what the former has done. Coup is the worse version of such scenario.