Raven1968,
Besides all the obvious difficulties, where on earth Qatar will get enough qualified and competent "locals in charge" to ensure that massive infrastructure projects will be carried out in accordance with all requirements:

- Airport and related infrastructures;
- Cross Bay Tunnel;
- Bridge to Bahrain;
- Metro System;
- High Speed Railway System;
- Major road network improvement;
- Stadiums and related infrastructures;
- Hotels and Housing

All the above to be built at the same time and to be used for 1 month only!
(Qatar should not forget and be honest in reporting facts, that its population is only around 350 000. All the rest are migrant workers and expats who are not part of the permanent Qatari society!)

Where on earth the Qatari authorities and statutory bodies are equipped to license and supervise this gigantic amount of major construction projects?

If it’s already the mess we see today, imagine how this city will become when all these projects will take place at pretty much the same time?!
It will be guaranteed chaos!