I can run a good interview now, get most people talking. But put a hardened one across the table, someone who has done this before and gives me nothing, and I lose. I walked out of a room last week knowing he had read me better than I read him.
More people experience this than they realize.
You can interview most people, but the hardened and evasive ones still beat you.
If this sounds familiar, the Library can help you find the bigger picture.