I do know a couple of people that did just that. Had the job lined up, knew it was a lock, but due to lots of bad feelings (in one case not the admin's fault - it was the director's) waited until the day before the cutoff to resign.
No, it wasn't me!
--Previous Message-- : Really if they're that special of : administrators you could intentionally not : resign until that mark to make them scramble : more to find a replacement... It would burn : bridges impressively, but I confess what : you're being told tells me that : administrator might need to learn the lesson : of when you can resign up until... :