Yeah, well, good luck convincing most manager I know to plan for a phase whose outputs get tossed away. They would really much rather the prototype code gets me

Yeah, well, good luck convincing most manager I know to plan for a phase whose outputs get tossed away. They would really much rather the prototype code gets merged, and then just work. Not to mention the fact they never let you "do things more properly", if they can help it, because you are again wasting precious time which could be used to do other work from the ever-growing backlog. As for my own projects - if I both "write things more properly" and divide them into small parts, it's easier to just keep the code I wrote for doing whatever it is I had it do; and maybe at some point collect enough of that to make a library, or at least a reusable header.