1) Difficult industry with uncertain future. General Mills, like the rest of the consumer goods industry, has regular layoffs due to lack of sales growth. I still think this is a great place to work. Given current market environment, however, it is more likely you will stay here for 5-10 years, rather than 30.
2. Difficulty to move up in the organization. Consumer Insights at General Mills is still one of the largest insights organizations in the world (over 150 employees), but recent organizational changes have severely limited the number of manager and above roles. The time it takes to be promoted can vary widely, and those who want to move up quickly in the consumer insights organization can be frustrated.