reporter: harvard business professor joseph fuller agrees. while ngpplicants may filter out the workers they need. it s very, very easy to end up on the wayside of a candidate who is just missing one attribute and triggered one filter. reporter: nationwide there s more than one job opening for every american who wants to work. but a survey by job search web sited in shows 77% of applicants have had employers stop communication during the interview process, and 28% have stopped communication themselves. one ongoing challenge for employers: a low participation rate in the job market means people are dropping out or looking outside traditional channels. it s very rare that i find an owner of any business that tells me they are fully staffed. reporter: jay johnson is rerantbubba ssthand at his cape s six unfi positons. r evey 10 applications we