Two of the most famous characters from Lewis Carol’s Through the Looking Glass are the twins, Tweedledum and Tweedledee. When Alice encounters them, they ridiculously mirror each other’s actions and words. Each brother frequently says “contrariwise” as if he’s about to disagree with his counterpart, only to inadvertently say the same thing. Unfortunately, far too many companies end up with teams that look and act in much the same way. Every organization would say they want to hire according to merit. The problem is that many people unconsciously evaluate merit in a self-validating way. The most successful candidate will often…

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