Have people who actually understand what they are asking do the interviews. Problem with mist interviews is they are non-technical people asking complex technical questions and expecting a very specific answer that only people whose brains work a certain way will come up with. This often eliminates the mist creative developers because they come up with different solutions than the one the nontechnical person was taught is the right answer. Not to mention often the questions they ask are obsolete things that most people aren't going to know off the top of their heads because it's something they would normally look up in real work not something they need to memorize. Tech interviews are horrible at finding good talent. Good riddance.