That's all well and good, but what if delivering good code actually necessitates a pretty large shift in the codebase? Usually that requires buy-in from teammat

That's all well and good, but what if delivering good code actually necessitates a pretty large shift in the codebase? Usually that requires buy-in from teammates because it will take substantially longer. Almost always the answer will be no. So you're forced in a way to ship bad code.