Some of them are pretty good, almost as if they were divinely inspired. Others are not so good and far from divinely inspired. Either way, the writing down of leadership guidelines often completes the right of passage for someone who aspires to the Promised Land of leadership. Carve that one in capital letters. Both are important.
Leadership provides vision and direction for the organization.
Management establishes goals and tracks progress. In my book, people always come first. Thou shalt affirm rather than cajole. The second commandment is like unto the first. In the short run it is easier to simply tell people what to do and beat up on them when they fail.