Sure. My whole point is you have to believe its the right thing, and be good enough to execute on a large refactor like that without getting stuck in the never-

Sure. My whole point is you have to believe its the right thing, and be good enough to execute on a large refactor like that without getting stuck in the never-ship mud, or endless pursuits. Being great is overcoming the reasons you are giving not to do it. Being great is having the vision to see how these decisiosn impacts your ability to deliver in the future. Being great isn't necessary. And you've pointed that out. Your attitude ensures that the code you write meets your standards. Your standards, aren't "great."