From the outside the company looks glamourous. However, once you step in, you can easily spot the rotten Catalan culture and bad management. Things get highly political especially at senior levels: It is closer to a family business than the professional international firm image Delta is trying to draw. The senior management is not aligned on core objectives and doesn't seem to have clear visibility. Partners desperately oversell projects without caring about the work-life balance of the consultants. Most of employees are not satisfied and looking for the next thing, making Delta a transit company. Moreover, everyone inside Delta would tell you most of the positive reviews are fake and produced from within.