If you don't understand your systems well enough to comfortably refactor them, you're losing the war. I probably should have put "simply" in scare quotes, it is

If you don't understand your systems well enough to comfortably refactor them, you're losing the war. I probably should have put "simply" in scare quotes, it isn't simple--and that's the point. Responding to unreasonable demands, like completely changing course at the 11th hour, shouldn't come at a low price.