Researches and discussions report how diversity increases profit, productivity, or innovation. DEI (or more fashionably DEI&B) has clearly been on the HR agenda for many years now. We don’t need to do a deep analysis to experience how challenging it is to push the DEI idea through the managers. If we still feel it necessary to attend conferences, events or to go to workshops or training dinasours, it seems suspicious that it requires quite a lot of effort. But why is this, if the concept is so common sense? What is it that managers don’t understand? Honestly, they don’t understand what HR doesn’t do either.