What I found most interesting in this advance copy book review is the following:
She describes how Petraeus' first act was to lift McChrystal's restrictions on the use of force - especially on airstrikes - if civilians were nearby. "There is no question about our commitment to reducing civilian loss of life," Petraeus told his staff. There was, however, "a clear moral imperative to make sure we are fully supporting our troops in combat." Broadwell adds that the problem, according to Petraeus, was less McChrystal's order than how it was even more strictly re-interpreted by lower commanders.