This Agreement (including Appendix “A,” Appendix “B”, and Appendix “C” as each may be amended from time to time) contains the entire agreement and supersedes all prior agreements and understandings, oral or written, with respect to the subject matter hereof, including without limitation the Existing Employment Agreement. This Agreement may be changed only by an agreement in writing signed by the party against whom any waiver, change, amendment, modification or discharge is sought.