Only a human being would be able to assess whether candidates are capable, personality-wise, of sharing and disseminating that institutional knowledge to help other newer and younger workers.

There is age discrimination, but I think there are two kinds. One is when the employer is discriminating for specific reasons and doing it intentionally. The other is where you have managers who really aren't looking to discriminate but feel a little on edge because the candidate they're talking to is older. Sometimes they can even smell age concern on the part of the candidate and they wind up discriminating almost unconsciously.

When you're not recruiting effectively you're not recruiting properly through a certain channel, like a job board, then what's left of you? I don't believe HR's been able to figure that out. They need to go back to the way they used to do it. They complained that they got so many millions of applicants, they couldn't possibly spend the amount of human time on all those applicants. But they could solve the problem tomorrow if they stopped soliciting millions of applicants through job boards.

I think what's happening is companies are trying to maximize shareholder value and I think they realized that if they could hire more effectively, they would. What I'm suggesting, though, is that human resources departments in most companies have become so detached - have become such a bureaucracy - that they have become clueless. They don't realize that the processes they have put in place have very little to do with recruiting, retaining and bringing on talent.

I really think you cannot separate the money from the age. When employers discriminate over age, they're also discriminating over money. Older workers tend to make more money, especially the higher up you go, and companies don't want to spend the money. They want to spend less.

An online job search seems cheaper. But what HR is doing is turning away valuable candidates. They're experiencing false negatives. That means the right person applies for the job electronically but the algorithm kicks them out so they lose that individual.

Remember, the word "discrimination" isn't always pejorative. When an employer discriminates because an older worker lacks certain kinds of skills that are important in the market today, then it's almost a legitimate form of discrimination because the employer is just trying to figure out who can actually get the job done.