http://www.motownteam.org/about-four-of-10-new-teachers-in-new-jersey-do-not-... A student recently asked me about the extremely small proportion of teachers that are fired or lose their license after receiving tenure (or similar due process rights). I think the number of teachers who leave, by their own doing or not, before receiving tenure doesn't get talked about enough. If 40% of teachers don't make it past 3 years, then maybe that's serving to improve overall teacher quality before firings are necessary.