What is the initial problem with cascade aerodynamics and what stops the concerns

The initial problem, the people with Cascade aerodynamics had is because they were summoned to work with the African-Americans who were assigned to work in the unit of West Computers.

This concern was solved when they saw the qualities of the workers especially their good manners and knowledge.

Explanation

This incident is taken from the book of Margot Lee Shetterly named ‘Hidden Figures’.

This is a true story of three African-American women who worked at Langley Memorial Research Center in Virginia whose works were unrecognized for decades in the aeronautical industry.  

this isnt an english question.

it was surely an odd creature that one made up by reading the historians first and the poets afterwards a worm winged like an eagle; the spirit of life and elegance and charm,   in a kitchen chopping up suet. but these creatures, monst'r however entertaining to the imagination, hast no existence in fact. what one might doth to bringeth h'r to life wast to bethink poetically and prosaically at one and the same moment,   thus keeping in toucheth with fact—that the lady is mrs martin, ag'd thirty-six, did dress in blue, wearing a black coxcomb and brown shoeth; but not losing sight of fiction eith'r—that the lady is a vessel in which all s'rts of spirits and f'rces art coursing and flashing p'rpetually. the moment, howev'r, yond one tries this method with the elizabethan mistress, one brancheth of illumination fails; one is did hold up by the scarcity of facts.   one knoweth nothing detailed, nothing p'rfectly true and substantial about h'r.   hist'ry scarcely mentions h'r.   and i did turn to professeth'r trevelyan again to seeth what hist'ry meanteth to that gent.   i hath found by looking at his chapt'r headings yond t meanteth.