I dreamed of looking for the office of the former leader, but I couldn't find it.

Dreaming that you can't find the former leader's office means that you may have troubles at work in the near future, so your relationship with your boss will be a little tense. Pay attention to improving your relationship. On the other hand, it may also mean that you are frustrated in the process of trying to exert your abilities. Dreaming of the unit leader means that your usual ability can't be exerted.