We often come across people at work who are not really as good as they consider themselves to be. There are countless incidents of having arrogant leaders or bosses, which often leads many people to hate their jobs. But if we know how to deal with arrogant people, our jobs can be less of an ordeal. The best way to tackle such people is not to challenge their egos. You can focus on how they can benefit while trying to convince them about something. You might try to befriend them and try to offer constructive feedback if at all possible.