Here's my analysis on the T-Rex "firing". SecState Tillerson, prior to departing for Africa, gave a speech at a Washington DC-area college, George Mason University. He laid out, what seemed to me, not just a feel good speech for dumbass college students, but an actual strategic vision statement for the US's future Africa policy.
Three points that stood out:
1) The US will continue to train local African militaries to stabilize and secure their own countries. Security leads to
2) A stable country and the environment conducive to economic growth. The era of dependency on US aid is over; administratively-trained Africans running their own institutions will grow state capacity (and hopefully reduced corruption), ensuring African sovereignty. Sec. Tillerson is creating the space for growing inter-African trade, which will open up new markets and opportunities for Americans to do business (very Trump-like).