Most business leaders can spot external threats easily, but the most dangerous risks often emerge from within their own operations. While you're focused on market competition, your business systems might be quietly draining hundreds of thousands of pounds annually through subtle warning signs that seem like normal "growing pains." From month-end closes stretching beyond five days to unexpected cash flow crunches, these operational hiccups actually signal critical system failures that cap growth and erode competitive advantage. The businesses that recognise these five warning signs before they escalate will gain market advantages, whilst those that dismiss them may struggle against more efficient rivals.