1Charlie,
I do see the point here. Clearly, the artlcle was kind of misleading, in that the impression given was that one could take an ICAO course (I've been told that there isn't such a thing as an ICAO course; that ICAO only provides 'technical training guidelines' for states to use when training their controllers) and find work anywhere.
What's come across to me is that I should have to be employed (be found suitable first) by the owner of the airport or atc centre and undergo training that's approved or recognised by them.
Not as simple as the article would have us interested in the training believe.
Thanks!