I get conversation has shifted from Cignetti comparisons to a potential E-Rob hiring and is now awaiting whatever other update happens next. Throwing my two cents into the ether though after chewing on it for a day, Aurich seems to have traveled a path similar to Dave Aranda pre-Wisconsin to this point if we want to draw some more comparisons.
Aranda was the lone DC at Cal Luthern and co-DC at Delta State, before coaching the DL at Hawaii for two years and then becoming their DC for two years after that. He then spent one year at Utah St with Gary Anderson and was nominated for the Broyles award before following Anderson to Wisconsin.
We saw Aurich get his feet wet at Bemidji State, and then Idaho to compile three years of DC duties at either D-III or FCS levels before getting his lone FBS DC role last year at SDSU after spending a gap year coaching edges for the Aztecs.
Aranda was slightly more seasoned with two more years as a DC at the D-I level before Wisconsin (granted these were both WAC teams), but it showed the non-P5 work at the time translated when he got to Wisconsin and later LSU.
I’m not trying to proclaim Aurich is the next Dave Aranda. Aranda nowadays would be coveted by most programs if he updated his LinkedIn with a green ring saying he's open for DC work. Wisconsin’s defense before Aranda arrived was also already pretty stout. Aurich has to elevate what he's inheriting (luckily his DC history appears to be taking struggling defenses and making them respectable, or at least drastically improving them in Year 1). But Aranda’s history provides a case study of another coach who had just started making a name for himself at the G5 level before becoming a more known commodity in the bigger conferences, which tracks with Aurich's main red flag of zero P4 history while still showing a tendency to coordinate a fiesty defense that raises some eyebrows.
It's also worth looking at other DC's histories. Their rise looks to be pretty fast. This thread has analyzed Indiana's defensive coordinator a bit and how green he is, but even someone like Tosh Lupoi had minimal DC experience before he was entrusted with being Alabama's lone DC. Clark Lea had no DC experience before he was elevated to be Notre Dame's DC in 2018. Meanwhile, Aurich has had two prior stints where he started as a position coach, and after one year he put himself in a position to call the shots on defense for that team. At Idaho, he was just flat out hired to do it, although 2021 Idaho HC Jason Eck (who is also quickly elevating himself and currently at New Mexico), worked with Aurich for four years prior at South Dakota, so familiarity played a role there.
Will Aurich turn everything around? Pffft. To be determined, for sure. But he definitely appears to fit a pattern that other successful DCs have followed before they've blown up on the national radar.