The end result is not what is expected from that task.

Hi!
I read the following script in a TOEIC Speaking book:

“Question.
Do you agree or disagree with the following statement?
The best employees are those who complete their work in the shortest amount of time.
Give reasons and examples to support your answer.

Answer.
I don’t agree with the idea that the best employees are those who complete their work in the shortest amount of time, because usually, when people complete their tasks in the shortest amount of time, they tend to skip details. The end result is not what is expected from that task. For example, when I finish something too soon, I go back to take a second look and see if I missed a detail or two.”

I paraphrased the boldface sentence into the following:
Paraphrase A. When you finish your work by skipping details, the work cannot be complete. or
Paraphrase B. The result that you get by skipping details is often incomplete.

and have two questions:
Question #1. What do you think of my paraphrases? Do I understand the boldface sentence correctly?
Question #2. If you rewrote the boldface sentence, how would you write?

Thanks in advance.