I disagree about the gag order. I don't know why Bacon thinks it would have been a good idea for Rodriguez to lash out at his former employer. He was going to be painted as a villain regardless, for the cardinal sin of leaving his alma mater. Once the lawsuit was on, I don't think it really mattered what he said. In general I think the book made way too big a deal about PR and not enough about actual football coaching. You can be the greatest PR guy in the world and still get fired for going 15-22.
I also don't agree that this blog fills in the gaps about the defense. The question of why Rodriguez is so married to the 3-3-5 has never been answered. Nor do we ever learn what exactly compelled him to hire Shafer and Robinson, when he knew that they weren't experienced at running that defense.