http://www.chicagobusiness.com/artic...in-post-office
Walgreen looks to move HQ to Old Main Post Office
By Thomas A. Corfman and Greg Hinz May 08, 2014
Walgreen Co. is taking steps to move its headquarters downtown — the old Main Post Office.
Under pressure by some shareholders to move its Deerfield headquarters to Europe, the drug store giant has for months been scouting locations in the Loop, where it would potentially move thousands of jobs.
The company is the largest employer in Deerfield, with 3,500 workers, according to a filing by the northern suburb to bond holders in December 2012. Exactly how many employees would come downtown could not be determined.