Boy, this business is tough.  You think you have this audition/interview part down, then BAM!,  you are back to square 1.  As soon as you become confident in your craft, this biz reminds you real quick to not be too confident.  One must remember that when we are not cast, it doesn’t necessarily mean we dropped the ball.  Sharon Bialy, one whom I respect highly, once tweeted me “There can be many reasons why you were not cast, usually never having to do with you”.