The Agent shall not without the prior written consent of the Principal assign, transfer, charge or deal in any other manner with this Agreement or its rights under it or part of it, or purport to do any of the same, nor sub-contract nor appoint sub-agents or delegates of any or all of its obligations under this Agreement.

Уступать можно права (и обязанности) по договору, но не сам договор, или нет?