> Bo Olson was one of them. He lasted less than two years in a book marketing role and said that his enduring image was watching people weep in the office, a sight other workers described as well.

If other workers described the same sight, I don't think his input's important enough to require personal credibility, so I'm not too concerned. But the use of "lasted less than two years" would be more honest written as "spent less than two years" or something, because there's an implication that he chose to leave voluntarily.