All of the terms and provisions of this letter agreement shall be binding on and inure to the benefit of and be enforceable by the respective heirs, executors, administrators, legal representatives successor and assigns of the parties hereto (including, in the case of the Company, any acquiror), except that your duties and responsibilities under this letter agreement are of a personal nature and shall not be assignable or delegable in whole or in part by you and the Company may only assign this Agreement to an entity that assumes all or substantially all of its assets and that assumes this Agreement in writing.