Video on
msnbc.com:
Walgreens CEO Greg
Wasson will retire
after the merger
with Alliance
Boots. The
company's
board will conduct
a new CEO search
(more)
Video on msnbc.com: Walgreens CEO Greg Wasson will retire after the merger with Alliance Boots. The company's board will conduct a new CEO search, reports CNBC's Dominic Chu.