When it comes to leadership, I think you can learn as much from bad leaders as from good ones.  It is certainly the case in the life of King Saul.  King Saul ruled over Israel for forty-two years, beginning when he was 30 years old and his life spanned in 1 Samuel 9 all the way to 1 Samuel 31.  During his remarkable rule his faults become more and more evident.  And by studying them we can learn to avoid them in our own lives.