Just like when you make a typo it’s sometimes easier just to delete the whole word and do it over than to try to arrow your way into the word and fix the problem by shuffling letters around.

Rewriting a whole module can be a very good opportunity to introduce a clean and isolated island of good code into a part of the system that you kind of dread working with.

You can even quite safely replace a good portion of your whole system by rewriting it it chunks like this.