When I meet successful people I ask 100 questions as to what they attribute their success to. It is usually the same: persistence, hard work and hiring good people.
The most essential factor is persistence - the determination never to allow your energy or enthusiasm to be dampened by the discouragement that must inevitably come.
This persistence as private firms continued because it ensured the maximum of anonymity and secrecy to persons of tremendous public power who dreaded public knowledge of their activities as an evil almost as great as inflation.
Film editing is now something almost everyone can do at a simple level and enjoy it, but to take it to a higher level requires the same dedication and persistence that any art form does.
The real issue is not talent as an independent element, but talent in relationship to will, desire, and persistence. Talent without these things vanishes and even modest talent with those characteristics grows.