can be positive even in a case like this one, at a resent presentation, of course is replacing chris guyinger, pointed out that change can bring, new perspective, new ideas and new talents. but change can bring more than that, in thinking about all the changing facing the department, i realize that work of the department of all of us, is to get people to change the way get other people to change the way they do business. if one works in an unchanging world, it's hard to forget how people dislike change even when it makes sense. i hope that jen's leaving and all the other changes the department has been undergoing will help all of us in two ways. first by helping us remember how hard it is for people to change the way they do business and then second to use that understanding to become better advocates for the changes that are necessary to save san francisco and the planet. thank you, and thank you jen. >> commissioners do you have anything to add? >> i don't know how anybody can improve what commissioner wald just said. what commissioner wald said. >> i agree with warrior spirit heart, thank