you had those who left because of scandal, mcdonald's, boeing, they all went because something happened and they felt it was best. time warner felt it was best they should go. then you've got those going because of bad results. under armour, nike, gap. the companies just didn't do very well. then you've got those where it's just time to go. you have oscar munyon at united and best buy's hubert jolly. then there are those at people like mcdonald's, places like boeing. >> are there others that aren't ceos? >> first of all, your tenure will be between three and five years, so you don't have very