"Don't do multi month dev projects." Investing months of development on a shot in the dark is certainly dangerous, but months of development, usually many, are

"Don't do multi month dev projects." Investing months of development on a shot in the dark is certainly dangerous, but months of development, usually many, are a prerequisite for any worthwhile product or service. Large projects are only a problem if they are an unprofitable waste of money and opportunities. Software development is the whole company's full-time permanent job in any case, so the priority should be maximizing its value, not doing less of it. This is, in fact, the purpose of other suggestions, like hiring selectively (less dead ends, more work done), avoiding low-value work (more revenue), and avoiding hope-based strategy (lower likelihood to fail badly).