Being envoy to Somalia more appealing than Guinean prime ministership

I was interested to read that François Fall is the new UN envoy to Somalia As you may remember, Fall was prime minister of Guinea but resigned dramatically last May, while abroad, complaining that head of state Gen. Lansana Conté hadn't given him enough power to actually reform the crumbling Guinean ship of state. It's telling that Fall felt he could get more done as an envoy to Somalia than as Gen. Conté's head of government.