Much has been written about the mismatch between employers looking for good workers and the unemployed who are looking for work.
Wharton professor Peter Cappelli's essay on Human Resource Executive Online is as good (actually better) than many I've read on this topic.
Here's the beginning and a link to the rest:
Short-sighted HR practices and unreasonable job requirements may be two leading factors that contribute to the difficulties employers are having in finding qualified workers. A recent article on the issue drew an avalanche of responses, including a few that were quite enlightening.