Executive’s or the Company’s failure to insist upon strict compliance with any provision of, or to assert any right under, this Agreement shall not be deemed to be a waiver of such provision or right or of any other provision of or right under this Agreement. Any provision of this Agreement may be waived by the parties hereto; provided that any waiver by any person of any provision of this Agreement shall be effective only if in writing and signed by each party and such waiver must specifically refer to this Agreement and to the terms or provisions being modified or waived.