Secretary of State, and former National Security Advisor, Condoleeza Rice explains:
I'm a terrible long-term planner.
In late 2000, National Security Advisor-designate Rice published an article describing the many ways in which US foreign policy would have to deal with China in the new administration. Richard Clarke then the counterterrorism czar, had trouble scheduling meetings with her and her staff to describe the threat posed by al Qaeda and related terrorist groups.
She was a big booster of the Iraq war, and was considered a potential successor to George W. Bush. Whether that is despite or because of her admitted myopia is hard to say.