We've all been in interviews that we know immediately are going to be a waste of our time. Promising candidate on paper, but in a phone screen or in-person meeting, it just doesn't pan out. How do you still make your time as productive as possible?
Google co-founder Sergey Brin has a pretty good idea,
detailed here. In a nutshell:
Ask the interview candidate to tell you something you didn't already know. You can qualify the topic, or leave it open.
On many levels, this is a great question. Give it a shot sometime.