Hypotheses about durable unemployment: just-in-time hiring

This is from The Economist:

Recruiters are clearly becoming far more sophisticated, thanks to the new search tools that are available, says Aberdeen’s Mr Saba: “You’d think with 10% unemployment, jobs would be filled more quickly, but the focus on sourcing the right people, screening them and so on means that the time to fill has not fallen.” Mr Joerres believes that the increasing sophistication of recruiters means that firms will do less “anticipatory hiring” than in previous recoveries. Instead, firms will wait to get exactly the staff they need, when they need them.