Good point! I always try to ask 'thinking' questions whenever I interview a candidate to get an idea of how they think.

Long-standing relationships are the way to go, whenever possible. it's impossible to know for sure after talking to someone for an hour or two how they'll do in a job.

I've intereviewed book smart people who knew all the answers but couldn't do the job, and vice versa... but it's good to find someone who is both book smart and has the knowelege to 'get the job done'.

Mark