Tenure is pointless. I can't imagine my school system firing me even if I didn't have tenure, because I do my job exceptionally well. Tenure does very little good except to prevent principals from abusing their power and firing teachers over peripheral issues or personality conflicts. My guess is that those firings would be far less common than the problems under a tenure system. Most teachers I work with are good or even great, but a disappointing number of incompetents remain, teachers who are not good enough that I would want them teaching my kids or anyone else's kids, but not bad enough that the administration considers it worth the effort to document their performance and eventually fire them. I'd support an end to tenure - as the Democrats say "it's for the children" and in this case that phrase would, for once, be true.