Walgreens recently announced it would be closing 1,200 stores over the next few years.It's been a rough year for retail pharmacy giant Walgreens Boots Alliance (WBA -3.91%). The business has struggled to grow and stay out of the red. In the long run, there may be even greater uncertainty, as the viability of its business is questionable, given the rising popularity of e-commerce and online prescription delivery. This year, the stock is down close to 60%.But recently, it reported its latest earnings numbers, ...