Novel idea. A while ago I was thinking about the best way to do the 'teach something to students you don't know who don't want to say stupid things in front of their teachers' during an on-campus interview. (Getting ahead of myself? Sure... but it beats the shit out of watching my interviews melt away one by one on the wiki.) It occurred to me that we don't have to do it this way.
At my school, the library has audio visual equipment that I can check out... For free... If you want to know how I teach mid-semester, why can't I just send in a video or two of me teaching mid-semester. You get to see me teach. I get to 'audition' without all the artifice. Win/win?