Mostly agree but I think the distinction is not always clear between data model changes and changes to application-tier logic. In most cases you can do a partic

Mostly agree but I think the distinction is not always clear between data model changes and changes to application-tier logic. In most cases you can do a particular refactor either way and you have to figure out what is the best way to achieve it. Just pushing code around is usually not tremendously valuable but it's also not particularly costly.