DITA makes things dramatically easier, but it does not remove the need to define your own processes and architecture. It was never intended to do so. You can't just fly your stuff from one place to another. The nature of the environment has changed. It's as dramatic as a frog's lifecycle from water to land. Put migration aside for now — your content needs to metamorphose, and you with it.
This blog is about structured content, semantic metadata, and writing. I'm trying to bridge the worlds of data and prose. I see content people who understand data in general, but in their writing, think in "words on a page" and can't see it as entities and types of info. On the other hand, sometimes entities and relationships — bare facts — are all that data people who work with content see. They miss the context, nuance, and narrative that writing brings.
Opinions are of course my own!