For a more balanced contemporary (from 1985) depiction of the Vector story, see [0]. Basically, Bob Harp was the main technical force behind all Vector products, akin to Steve Wozniak at early Apple. In 1982 Bob and Lore could not agree who should be running the company and Bob left. Soon thereafter Vector deflated.
Moreover, the company he founded made a succesful pivot to making IBM PC clones and outlasted Vector. Whether the sale to Daewoo represents a succesful exit is perhaps debatable.