Interesting article, but there's a big reason why I think that for the majority of job searches you can't compare it to a movie casting director.

For a casting director, you are able to consume and evaluate the work of the job candidate.

While that is true for high tech jobs like design or open source software were a candidate can develop a portfolio, I would counter that for the majority of high tech candidates their entire work portfolio is the intellectual property of the companies they work for and outsiders are never going to have consumed/accessed it.