Once you start making revenues from your code, a complete rewriting is probably the worst thing you can do for your company. Sometimes it might be warranted, b

Once you start making revenues from your code, a complete rewriting is probably the worst thing you can do for your company. Sometimes it might be warranted, but customers care about solving problems, not about technology. Chances are if you wrote properly modularized code, you can rewrite modules one by one, which is perfectly legit. But just dropping everything and trying to rewrite a product from scratch is a mistake that a company usually only makes once (before they die).