Mind you, maintenance is in trouble too. Just a different kind of trouble. If you have original code, you can always write a test suite based on it, unless man

Mind you, maintenance is in trouble too. Just a different kind of trouble. If you have original code, you can always write a test suite based on it, unless management is averse to this. (Begging the question why they're not averse to a rewrite.) Like any test suite it is not going to be complete. Ultimately it's best not to get piled on by rewriting really and often in small parts. (Carmack way.)