In reply...
CuitoCuanavale,
I cannot argue with anything you have to say except one thing... unless the QCAA change thier requirements, FAA controllers are not currently qualified to bid on Doha unless they hold an ICAO license somehow. The FAA issues thier own license and for some reason the QCAA will not recognize it.
If that has recently changed, then great. But when Serco was tasked to hire, that was a restriction that greatly handcuffed them.
If the QCAA really wants help, they can drop that restriction and you will have plenty of bidders... IMHO.
Regarding the rest of your post, thanks for the info... good stuff indeed!