[Dylan16807]

The best case is a series of small refactors that split up modules that do too many things and combine modules that always work together and don't benefit from the separation. And most importantly to reduce pieces of code reaching in to the internals of other pieces.

There is no need to do a 2.0, and the number of lines of code will often drop. Though that depends on how much edge case handling code was skipped in the debt version.