It was a terrible and costly error, and I could’ve done something dramatic like fire Ross to set a tone that mistakes would not be tolerated. But since mistakes happen all the time, that would have only encouraged other people to hide theirs, which would have led to even bigger and more costly errors. I believed strongly that we should bring problems and disagreements to the surface to learn what should be done to make things better. So Ross and I worked to build out an “error log” in the trading department. From then on, anytime there was any kind of bad outcome (a trade wasn’t executed, we
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