In a true zero-defects approach, there are no unimportant items.
When in doubt, delete it.
Slowness to change usually means fear of the new.
Many managers feel, somewhat cynically, that people are being paid to do their jobs and that's that. This attitude reflects an insensitivity to people that is a trademark of many hockey-style managers.
Quality has to be caused, not controlled.
Problems breed problems, and the lack of a disciplined method of openly attacking them breeds more problems.