On Bill Bennet's radio show, I heard an interesting comparison of leadership styles as reflected by two historic documents: the letter Eisenhower drafted in case the D-Day invasion went badly (taking full responsibility) and the letter Leon Panetta wrote to authorize the taking of Bin Laden (covering the President's behind - which is apparently, his chief instrument of leadership)

Here are links to both documents; compare and contrast:

http://www.archives.gov/education/lessons/d-day-message/

http://m.theatlanticwire.com/global/2012/04/piece-paper-killed-bin-laden/51604/#0_undefined,0_