Following the completion of the Genentech transaction, Roche has made organizational structure changes and filled key management positions that will become effective May 1, 2009. Arthur D. Levinson, currently Genentech’s chairman and chief executive officer, will chair Genentech’s new board of directors and head the integration of the two companies on a strategic level. Mr. Levinson will also serve as an advisor to Genentech’s Research and Early Development center, and will join the Sci...