This statement outs you as a 0L/1L with little understanding of legal hiring. Note that you are in the Legal Employment forum.
Contrary to longstanding TLS 0L wisdom, the quality of your law school isn't that strongly correlated with its "national reach." Where in the country you can get a job is largely determined by the combination of your school rank and your grades, and your personal ties.
If you've never been to Chicago in your life, attending Duke is not going to help you break into that market (perhaps barring you getting incredible grades) just because it's a T14 and is seen as a school with "national reach."
If you were born and raised in Denver, attending WUSTL is not going to prevent you (provided you have the grades) from coming back to a big firm in Denver just because it's not T14 and supposedly lacks "national reach."
You seem to be contradicting yourself here. You say the quality of law school isn't correlated with "national reach", but then say that portability is dependent on school rank.
I am a law school graduate starting biglaw in a few weeks. I also went to college in Colorado and have family in the legal industry there. I can say pretty confidently that attending WUSTL would be a terrible idea for someone seeking Colorado employment- even if they born and raised there. Yeah, they want locals, but they also do the vast majority of their recruiting from either local schools or elite schools (of which WUSTL isn't considered one). And going to Duke would definitely give you a much better shot at Chicago biglaw than a local Chicago T2- even if you have few ties to the city. Chicago isn't THAT insular (especially compared to Denver).
RE WUSTL specifically. I think the school is a tough niche. It has become almost as hard to get into as schools like Vandy (which has very good placement), but doesn't have enough prestige to be considered an elite job go-to school. It places like some of the better placing T2s, but your competition for grades will be almost T14 caliber. A WUSTL person who transferred to GULC told me that he went to out of town job interviews where the interviewer seriously asked him if the school was accredited. None of this is intended to offend WUSTL people- it's a fine school educationally, and some very smart people go there. It's just unfortunate that it is under-appreciated by employers.