Your definition of leadership and your interpretation of what Bush did is absurd on its face.
Bush did not fight back domestically because he considered the office of the president to be above domestic politics, not because he was a weak leader. The guy was a strong leader: ask the military which CinC they prefer, for example.
Don’t confuse deliberate refraining from day to day domestic politics with a lack of leadership.
Well, then lack of Vision— and a very poor choice to hold that philosophy.
Taking responsibility for Katrina was an absolute disaster.