Can't say I agree with the big bang rewrite part necessarily - at my last job, I found myself having to do significant refactors. The reason was that each view

Can't say I agree with the big bang rewrite part necessarily - at my last job, I found myself having to do significant refactors. The reason was that each view had its own concept of a model for interacting with various objects, which resulted in a lot of different bugs from one off implementations. My refactor had some near term pain of having to fix various regressions I created, but ultimately it led to much better long term maintenance.