Good candidates are not universally good, they are good for you after hire. One of the best business analysts I worked with (also a profession, mind you) was a

Good candidates are not universally good, they are good for you after hire. One of the best business analysts I worked with (also a profession, mind you) was almost fired when working under an old, grumpy and clearly underskilled one. I was hired once without interview into a unicorn, was loved by colleagues but hated the work, the business and the industry, then left rather quickly. See? There are mismatches and unknown unknowns, not just bad or good developers.