Pros
Nielsen is an organisation with huge resources to dominate the Retail Measurement space for a long time. There are lots of opportunities to harness, and lots of experienced people to learn from. There are lots of best practices that can be leveraged if properly aligned.
Cons
Lots of people are still working in silos. Working across border is something that should have helped the organisation to increase productivity, instead, it has become a clog in the wheel of progress. Many of the top management (outside Africa) have limited understanding of the Africa market. Also, they do not understand the challenges faced in Africa (many doesn't even know where Africa is, and when they visit, they do not go beyond their hotel rooms and the office). In my own opinion, the market is where the work is and not visit to clients.