We expect too much of 'interviews', so we've built an entire structure around them: 'behavioral' questions, whiteboard exercises, resume keyword scanners, long, tortuous lists of 'qualifications', elaborate processes of multiple interviews, etc.
After many years of sitting on both sides of the table, I've have come down to this: "hire lightly and fire lightly". In practice, this means beyond the (very) basics, hiring is not algorithmic; it's a crapshoot.
