Frequently, throwing out "all your code" is a sign you did pretty much everything wrong to begin with. Personally, the sign of a decent design is when you can w

Frequently, throwing out "all your code" is a sign you did pretty much everything wrong to begin with. Personally, the sign of a decent design is when you can wind up doing the old "Grandpa's Mattock" trick: "This is grandpa's mattock; my father replaced the handle and I replaced the blade".