Well, thanks for all your input fellas but, interesting as it was, a lot of it was way above my head.
The proposition was that over recent months there has been a steady increase in the number of route-less and/or wrongly routed flights. At the end of your learned discourses, a/ is this surmise correct? and b/ is there a system in place to correct it?
Most of us (I think it's probably "most of us") work on a "plug 'n play" basis so need reassuring that the position not only doesn't deteriorate further but substantially improves.