Pros
If you work at the headquarters in St. Louis, there is opportunity to move up and around in the company. Turnover is extremely high and tenure is low even at the VP level so there are always vacancies.
Cons
Outside of the headquarters, jobs are limited and remote/virtual opportunities are limited. Express Scripts' unofficial policy has been to hire outside the company to get the skills that they need for any given position instead of promoting and developing existing employees. Recent employee survey results were so bad that management would not publish the results. Lack of opportunities and training was one of the top complaints according to Senior Management's review of the survey. Other concerns included poor pay and poor work-life balance. Express Scripts has certainly earned their place as the 2nd worst company to work for in the US. Recent (2014) customer feedback from physicians, patients, drug manufacturers and insurance providers has also been extremely negative which is a reflection/result of the cutthroat, efficiency driven culture that the CEO George Paz has developed at Express Scripts and forced upon the newly acquired Medco Health Services.