My company does a good job of recruiting college students as interns, and then converting them to junior engineers when they graduate. Unfortunately they all leave within a couple years and generally double their salaries when they do.

This has been happening for the five years I've worked here and likely longer. For whatever reason no one can convince HR and senior management that we need to give significant raises (%10-20) each year for the first couple years after they graduate in order to keep decent engineers. The last time I brought it up I got some bullshit response about loyalty.