**FILE** The world headquarters of Pfizer Inc. is seen in New York in this April 12, 2005 file photo. Pfizer Chief Executive Jeffrey Kindler proved even those at the top aren't immune to an ongoing company-wide transformation late Sunday, May 20, 2007 in announcing the departure of Research and Development President John LaMattina and Chief Financial Officer Alan Levin. (AP Photo/Mark Lennihan, File)