Also note that "Caliph" Ibrahim's official biography now claims he has Qurayshi descent, one of the traditional requirements for the Caliphate.
You may have also heard how he has been criticized for wearing, in his first public sermon, what appeared to be a Rolex or other high-priced watch, though given the fact that the former ISIS is known to have captured a great deal of wealth in the course of its conquests, it may not be surprising.
Some serious readings:
- Thomas Hegghammer, who studies Jihadist movements, at Lawfare: "The Foreign Policy Essay: Calculated Caliphate."
- By "Mohammad D" at Syria Comment: The Six Words You Need to Know to Be a Successful Jihadi and Establish Your Own Caliphate