I'd say even the Roman Empire itself did a pretty good job with Diocletian and his reforms, it gave them at least another 100 years (most of the 4th century CE)

I'd say even the Roman Empire itself did a pretty good job with Diocletian and his reforms, it gave them at least another 100 years (most of the 4th century CE). The Notitia Dignitatum [1] (assembled/written sometime in the late 4th century) doesn't look like it depicts a collapsing administration/society. [1] https://en.wikipedia.org/wiki/Notitia_Dignitatum https://en.wikipedia.org/wiki/Notitia_Dignitatum