But, I did find this 2008 report, The Top Ten Challenges Facing the Next Secretary of Homeland Security. Note that this is from eight years ago, Sept. 11, 2008. Has anything changed? At least we have a new hazard in cybersecurity that a quick scan of the above document did not pick up.
But then there is this more recent piece that is "current" in its content, Critical Skills for the Next DHS Secretary. To its credit, it mentions cybersecurity right up front as a dominating issue for anyone coming into the position.
I was thinking of the question, "Why would anyone want to be the Secretary of Homeland Security?" The only answer I can think of, despite the normal drivel of "Leaving it better than I found it (you can start with employee morale!) is that you get to use the title, "Former Secretary of Homeland Security" once you leave the office.