Board of Directors

David L. Calhoun

David L. Calhoun

Director Since 2009

Senior Managing Director, Blackstone Group; Chairman & Former Chief Executive Officer, Nielsen Holdings. Mr. Calhoun has served as Senior Managing Director and Head of Private Equity Portfolio Operations of The Blackstone Group (private equity) since January 2014. Previously, Mr. Calhoun served as Chief Executive Officer of Nielsen Holdings N.V. (marketing and media information) from May 2010 to January 2014 and as Chairman of the Executive Board and Chief Executive Officer of The Nielsen Company B.V. from August 2006 to January 2014. Prior to joining Nielsen, he served as Vice Chairman of General Electric Company and President and Chief Executive Officer of GE Infrastructure. Before that, Mr. Calhoun served as President and Chief Executive Officer of GE Transportation; President and Chief Executive Officer of GE Aircraft Engines; President and Chief Executive Officer of Employers Reinsurance Corporation; President and Chief Executive Officer of GE Lighting; and President and Chief Executive Officer of GE Transportation Systems. Mr. Calhoun is chairman of the board of Nielsen Holdings N.V. and a member of the board of Caterpillar Inc.

Mr. Calhoun is a member of the Compensation Committee and the Governance, Organization and Nominating Committee.

Arthur D. Collins Jr.

Arthur D. Collins Jr.

Director Since 2007

Senior Advisor, Oak Hill Capital Partners; Former Chairman and Chief Executive Officer, Medtronic. Mr. Collins has served since April 2009 as Senior Advisor to Oak Hill Capital Partners (private equity). Previously, he served as Chairman of Medtronic, Inc. (medical device and technology) from April 2002 to August 2008. At Medtronic, Mr. Collins was also Chairman and Chief Executive Officer from April 2002 to August 2007, President and Chief Executive Officer from May 2001 to April 2002, President and Chief Operating Officer from August 1996 to April 2001, Chief Operating Officer from January 1994 to August 1996, and Executive Vice President of Medtronic and President of Medtronic International from June 1992 to January 1994. He was Corporate Vice President of Abbott Laboratories (health care products) from October 1989 to May 1992 and Divisional Vice President of Abbott from May 1984 to October 1989. Mr. Collins also serves on the boards of Alcoa Inc. and U.S. Bancorp. He is a member of the Board of Overseers of The Wharton School at the University of Pennsylvania.

Mr. Collins is Chair of the Compensation Committee and a member of the Governance, Organization and Nominating Committee.

Linda Z. Cook

Linda Z. Cook

Director Since 2003

Former Executive Director, Royal Dutch Shell. Ms. Cook served as Executive Director of Royal Dutch Shell plc (oil, gas and petroleum) from August 2004 to December 2009 with executive responsibilities for global natural gas, trading and technology. She also served as a member of the Royal Dutch Shell board of directors. Previously, she served as President and Chief Executive Officer and a member of the board of directors of Shell Canada Limited from August 2003 to August 2004. She served as Chief Executive Officer for Shell Gas & Power from January 2000 to July 2003. Ms. Cook also serves on the boards of KBR, Inc. and Marathon Oil Corporation. She is a member of the Society of Petroleum Engineers and the Board of Trustees for the University of Kansas Endowment Association.

Ms. Cook is Chair of the Finance Committee and a member of the Audit Committee.

Kenneth M. Duberstein

Kenneth M. Duberstein

Director Since 1997

Chairman and Chief Executive Officer, The Duberstein Group; Former White House Chief of Staff. Mr. Duberstein has served as Chairman and Chief Executive Officer of The Duberstein Group (consulting) since 1989. He was White House Chief of Staff from 1988 to 1989. Mr. Duberstein also serves on the boards of Mack-Cali Realty Corporation and The Travelers Companies, Inc.

Mr. Duberstein is Lead Director, Chair of the Governance, Organization and Nominating Committee and a member of the Compensation Committee.

Admiral Edmund P. Giambastiani, Jr., U.S. Navy (ret)

Admiral Edmund P. Giambastiani, Jr.

Director Since 2009

Seventh Vice Chairman of the U.S. Joint Chiefs of Staff; Former NATO Supreme Allied Commander Transformation; Former Commander, U.S. Joint Forces Command. Admiral Giambastiani served as Seventh Vice Chairman of the U.S. Joint Chiefs of Staff from 2005 to 2007, NATO Supreme Allied Commander Transformation from 2003 to 2005, and Commander, U.S. Joint Forces Command from 2002 to 2005. Admiral Giambastiani is a career U.S. Navy nuclear submarine officer with extensive operational experience, including command at the submarine, squadron and fleet level. His staff experience includes service as Co-Chairman of the Defense Acquisition Board and Chairman of the Joint Requirements Oversight Council. Admiral Giambastiani also serves on the board of Monster Worldwide, Inc. and as a member of the board of trustees/advisory board of the Oppenheimer Funds.

Admiral Giambastiani is a member of the Audit Committee, the Finance Committee and the Special Programs Committee.

Lawrence W. Kellner

Director Since 2011

President, Emerald Creek Group; Former Chairman and Chief Executive Officer, Continental Airlines. Mr. Kellner has served as President of Emerald Creek Group LLC (private equity) since 2010. Mr. Kellner served as Chairman and Chief Executive Officer of Continental Airlines, Inc. (commercial airline) from December 2004 to December 2009. Mr. Kellner joined Continental as Chief Financial Officer in 1995 and served as President and Chief Operating Officer from March 2003 to December 2004 and as President from May 2001 to March 2003, and was a member of the board of directors from May 2001 to December 2009. Mr. Kellner also serves on the boards of The Chubb Corporation and Marriott International, Inc.

Mr. Kellner is a member of the Audit Committee and the Finance Committee.

Edward M. Liddy

Edward M. Liddy

Director Since 2010

Partner, Clayton, Dubilier & Rice; Former Chairman and Chief Executive Officer, Allstate. Mr. Liddy served as a partner at Clayton, Dubilier & Rice, LLC (private equity) from April to September 2008 and rejoined the firm in January 2010. At the request of the Secretary of the U.S. Department of the Treasury, Mr. Liddy served as Interim Chairman and Chief Executive Officer of American International Group, Inc. (insurance and financial services holding company) from September 2008 to August 2009. He served as Chairman of the Board of The Allstate Corporation (insurance) from January 1999 to April 2008. At Allstate, Mr. Liddy also served as Chief Executive Officer from January 1999 to December 2006 and as President and Chief Operating Officer from August 1994 to December 1998. Before joining Allstate, Mr. Liddy held a number of financial and operating positions at Sears, Roebuck and Co. before being named Chief Financial Officer in 1992. Mr. Liddy also serves on the boards of 3M Company, Abbott Laboratories and AbbVie Inc.

Mr. Liddy is Chair of the Audit Committee and a member of the Finance Committee.

W. James McNerney Jr.

W. James McNerney Jr.

Director Since 2001

Chairman and Chief Executive Officer, Boeing. Mr. McNerney has served as Chairman and Chief Executive Officer of The Boeing Company since July 2005. Mr. McNerney also served as President of The Boeing Company from July 2005 to December 2013. Previously, he served as Chairman and Chief Executive Officer of 3M Company (diversified technology) from January 2001 to June 2005. Beginning in 1982, he served in management positions at General Electric Company, his most recent being President and Chief Executive Officer of GE Aircraft Engines from 1997 to 2000. Mr. McNerney also serves on the boards of The Procter & Gamble Company and International Business Machines Corporation. He is Chair of President Obama's Export Council.

Mr. McNerney is Chair of the Special Programs Committee.

Susan Schwab

Susan C. Schwab

Director since 2010

Professor, University of Maryland School of Public Policy; Former U.S. Trade Representative. Ambassador Schwab has been a Professor at the University of Maryland School of Public Policy since January 2009 and a strategic advisor to Mayer Brown, LLP (global law firm) since March 2010. Ambassador Schwab served as U.S. Trade Representative from June 2006 to January 2009 and as Deputy U.S. Trade Representative from October 2005 to June 2006. Prior to her service as Deputy U.S. Trade Representative, Ambassador Schwab served as President and Chief Executive Officer of the University System of Maryland Foundation from June 2004 to October 2005, as a consultant for the U.S. Department of Treasury from July 2003 to December 2003 and as Dean of the University of Maryland School of Public Policy from July 1995 to July 2003. Ambassador Schwab also serves on the boards of Caterpillar Inc. and FedEx Corporation.

Ambassador Schwab is a member of the Audit Committee and the Finance Committee.

Ronald A. Williams

Ronald A. Williams

Director since 2010

Former Chairman and Chief Executive Officer, Aetna. Mr. Williams has served as Chairman and Chief Executive Officer of RW2 Enterprises, LCC (consulting) since May 2011. He served as Chairman of Aetna Inc. (managed care and health insurance) from October 2006 until April 2011, having previously served as Chief Executive Officer from February 2006 until November 2010, President from May 2002 until July 2007 and Executive Vice President and Chief of Health Operations from March 2001 until May 2002. Following his retirement in April 2011, he provided consulting services to Aetna until February 2012. Mr. Williams also serves on the boards of American Express Company, Envision Healthcare Holdings, Inc. and Johnson & Johnson.

Mr. Williams is a member of the Compensation Committee, the Governance, Organization and Nominating Committee and the Special Programs Committee.

Mike S. Zafirovski

Mike S. Zafirovski

Director since 2004

Executive Advisor, The Blackstone Group; Former President and Chief Executive Officer, Nortel. Mr. Zafirovski has served as Executive Advisor to The Blackstone Group (private equity) since October 2011 and as President of The Zaf Group (consulting) since November 2012. Previously, Mr. Zafirovski served as Director, President and Chief Executive Officer of Nortel Networks Corporation (telecommunications) from November 2005 to August 2009. Prior to that, Mr. Zafirovski was Director, President and Chief Operating Officer of Motorola, Inc. (global communications) from July 2002 to January 2005, and remained a consultant to and a director of Motorola until May 2005. He served as Executive Vice President and President of the Personal Communications Sector (mobile devices) of Motorola from June 2000 to July 2002. Prior to joining Motorola, Mr. Zafirovski spent nearly 25 years with General Electric Company, where he served in management positions, including 13 years as President and Chief Executive Officer of five businesses in the consumer, industrial and financial services arenas. Mr. Zafirovski also serves on the board of Stericycle, Inc.

Mr. Zafirovski is a member of the Compensation Committee and the Governance, Organization and Nominating Committee.