The quota is based on an academic figure of controllers plucked from the depths of statistics.....

Not what the industry norm dictates throughout the real world...
The fact is no position has a permanent planner. If you do use planner on your undermanned crew (ie. less than 6 when it suits) ...then you have ummmm no breaks and God forbid you need 2 planners for the 4 permanent positions!, no stand alone supervisor and 1200- 1300 moves a day with this figure increasing relative to the inflation rate we enjoy here in the Capital!
Ho hum....one of my two buckets is filling up rapidly...