Handedness can be a disadvantage. Chief Forecasters at Bracknell CFO who were left handed were very unpopular because their work position was to the right of the Deputy and they perforce had to analyse, annotate and scribble on one chart. The ideal [I never saw it] was right hand Chief, Left hand Indian. Nobody had the whit to change seats.
Not to mention the totally colour blind chief, who, faced with colours red, blue and purple for fronts etc, routinely marked his crayons thus, only to have them b*ggered by a colleague with wrong labels.
As if the job were not impossible for lesser mortals anyway.