This is the background of the individual in question....and the series of promotions that have made her career.
http://www.whistleblowers.org/html/greenhouse.htm
As stated adequately above....it is entirely possible that this person simply was not competent in her position, and was demoted because of it. Due to past "problems" connected to Haliburton however, the issue of the whistleblower and corruption will come into play virtually anytime they screw up. Was she unfairly treated for not turning a blind eye....I dont know, but after researching her career I would tend to give her the benefit of the doubt.
Just my opinion.