Ask an accountant to find every unpaid invoice over $25,000 and you’ll get one question back before they touch a keyboard: does $25,000 count? That question, and about a thousand like it, is the whole reason a company can take a year to set up its own software. Most of that year is spent dragging rules out of people’s heads. Every business runs on them, and a CRM, payroll or warehouse rollout is months of consultants pulling the rules out one at a time and keying them into configuration…