You would never have been able to start a Friendly TO under the old system for a region like that. You pretty much had been forced to do a Brutal TO. The region is devastated, so Civil Work is difficult, but that doesn't matter per system. You need to:
-Raise sympathy beforehand. Use Diplomats/Ambassadors for this. This is *extremely* powerful. Once the region no longer hates you, you will get and be able to keep the region in a good state and you can repair it without too much effort. If the region is devastated, you pretty much need a force there permanently to keep up Control until you're ready. Priests can do this too, especially with regions with lower population, but Diplomats/Ambassadors are way more effective usually.
-Rotate troops in and out to gather Provisions while the other part aids the TO. You'll have about five days with full provisions, so you shouldn't need to rotate too much.
-What happened in Riombara with a starving region was that we took the region, put enough Food in it, had it go rogue and then we TO'd it again when the starvation was over. The second time we had no troubles with it.
-IF the region is in bad shape (the whole trick is to avoid that from happening though), you need a combination of Courtiers and Police/Civil Work done to push up loyalty enough to the point you can hold Court. Heroes can be a great aid in this too, but are also unreliable at the same time. Things like Festivals and Holidays can aid as well.
-Also, use Diplomats/Ambassadors. They are so powerful with taking over devastated regions it's worth saying twice. All your troubles can instantly never exist in the first place if you raise Sympathy before you take it over.
