Helena Foulkes's stint in CVS led her to an exciting opportunity to become the CEO of Hudson's Bay Company.
The healthcare industry in the U.S. is also booming with mergers and acquisitions.
A deal with Aetna will give CVS Health the edge over Amazon if the online giant joins the pharmacy industry.
Wal-Mart has dominated the retail space.However, can the reigning retail giant fight off growing online competitors like Alibaba and Amazon?