Help! C. Loddigesii - every root, dead!

[BellaA]

Hi everybody!
This might sound like the most trivial question ever, but what is one to do when all of the roots are dead?! My C. Loddigesii v. Harrisoniana ‘Volcano Queen’ just dropped its last flower and the leaves were looking quite impoverished, so I decided to pot up from the 4" (as it has < 20 growths). When I removed it – the rhizome was so incredibly brittle that it snapped at the oldest bulbs! Not only that, but the spongy stuff on its roots was so deteriorated, and the roots themselves were so dry that they broke off on me! Now I’ve simply got several little nubs and have no idea what to do! I don’t want to lose the plant, but I have no idea how it’s supposed to re-hydrate itself.
Any help would be very appreciated!
I’m including pictures for reference as well…
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