Michelle D. Gavin has a superb Council on Foreign Relations brief on possible US strategies for a post-Mugabe Zimbabwe. Writing in the fall of 2007, she argues that we should stop focusing on regime change and instead ask what we can do to keep Zimbabwe from becoming a failed state once Mugabe is out of the picture. The whole report is heavily influenced not just by existing Africa policy but also civil reconstruction difficulties in Iraq — see in particular the section on enlisting Zimbabwe’s armed forces to stabilize the country.
It seems to me that the foreign policy think tanks could turn out a whole volume of “post-” reports, including “post-Castro Cuba,” “post-Kim North Korea,” and “post-Assad Syria,” just to name a few. I wonder if the policymakers would actually bother to read them, though. (Yes, that is a rhetorical question.)