Don’t expect people to recognize and compensate for their own blind spots. I constantly see people form wrong opinions and make bad decisions, even though they’ve made the same kinds of mistakes before—and even though they know that doing so is illogical and harmful. I used to think that they would avoid these pitfalls when they became aware of their blind spots, but typically that’s not the case. Only very rarely do I hear someone recuse himself from offering an opinion because they aren’t capable of forming a good one in a particular area. Don’t bet on people to save themselves; proactively guardrail them or, better yet, put them in roles in which it’s impossible for them to make the types of decisions they shouldn’t make.

Consider the clover-leaf design. In situations where you’re unable to identify one excellent Responsible Party for a role (which is always best), find two or three believable people who care deeply about producing excellent results and are willing to argue with each other and escalate their disagreements if necessary. Then set up a design in which they check and balance each other. Though it’s not optimal, such a system will have a high probability of effectively sorting the issues you need to examine and resolve.
