I could argue you point by point, but frankly, I don't have the inclination at the moment. It's been a frequent discussion over at TTB in the past, and I've already laid out my argument numerous times. Mouton, Brown, and Warren were all 5- and high 4-star recruits. Yippee. A few of those guys turned out to be decent. Rodriguez must have been a great defensive coach to take a 5-star guy like Warren and turn him into an undrafted free agent, right? And Brandon Graham was a good player as a sophomore in 2007, before Rodriguez arrived. I'm totally unconvinced that his "development" was anything but a natural maturation that could have happened under virtually any FBS coach.
Regarding next year's defense, no, I don't think it will suck. Because it will be a team coached by competent coaches. But do I think there are many superstars waiting in the wings that were recruited by Rodriguez? No, not really.