The job search: Hiring the unemployed

I’m going to make another quick request of hiring managers:

If you have a choice of 2 equally-qualified people to hire, and one is unemployed while the other is looking to change companies, please make every effort to hire the unemployed person.  On one hand I’m saying that as someone out of work going on five months who lost out on at least one opportunity to someone who was already employed at another company.  On the other, there is a net benefit to society by pulling from the ranks of the unemployed but not so much by accepting someone who is already working somewhere else.

Thanks.