For now been seeing as a sufficient diplomatic plum that George Bush has decided to put a crony in as US Ambassador --
The President nominated Mark Green, of Wisconsin, to be Ambassador Extraordinary and Plenipotentiary of the United States of America to the United Republic of Tanzania. Mr. Green currently serves as an Attorney at Law at Godfrey & Kahn, S.C. Prior to this, he served as a Member of the United States House of Representatives. Earlier in his career, he served as a member of the Wisconsin State Assembly. Mr. Green received his bachelor's degree and JD from the University of Wisconsin.
Usually African countries get a career State Department employee. Here's one site devoted to Mark Green's recent career in Wisconsin.