The Company, acting through the Committee or through the Board, may amend this Agreement at any time for any purpose determined by the Company in its sole discretion that is consistent with the Plan, including but not limited to an amendment to accelerate the vesting schedule set forth in Paragraph 3. All amendments must be in writing. The Company may not amend this Agreement, however, without the Participant’s express agreement to any amendment that could adversely affect the material rights of the Participant.