Having watched the workings of school boards here for as long as we have, one thing has become obvious: The chummy closeness between elected board members and district administrators is not necessarily a good thing. With this in mind, the over-arching yardstick, if you will, with which we think voters should measure candidates for the boards in Tuesday’s votes is independence. The question should not be who is easiest to get along with. Rather, it should be who is most likely to maintain sufficient distance.