I find this title a bit misleading. I thought the article was going to be about how the typical interview process is broken, and that plenty of good programmers are being missed by the process. Or that employers are way too fussy about candidates already having the exact experience in the exact language and tools that the employer uses, instead of just looking for smart problem-solvers, and giving them time to get up to speed on specific tools and technologies.
Instead it's really about how to ensure an employer's offer will be accepted. In other words, it's about solving the problem where the employer has already found a programmer, but the programmer doesn't want to work for the employer. Not really sure how big of a problem that is.