This is a good argument for starting a project with Reverse Brainstorming, a technique I've developed to search for problems rather than solutions. In a Reverse Brainstorming session participants are required to generate a 50+ problems within an hour; 100 is my preferred number. The vast majority of the flaws discovered during the session will never be exposed, or will never become important enough to entail a corrective action. But there will be several that will reveal critical issues. Understanding and inventing ways to address them will put us ahead of the game.
tags: reverse brainstorm, method, problem, solution, high value, money