definiens: shall mean, as of the Effective Date, La Jolla ’s s ales personnel listed on Schedule A-2 and assigned to call in the Sales Territories list ed on Schedule A-2, as such schedule may be amended or supplemented by mutual agreement of the Parties from time to time . In the event that any em ployee assigned to a Sales Territory listed on Schedule A- 2 ceases to be an employee of La Jolla or undertake s a leave of absence, such employee shall cease to be a member o f the La Jolla Sales Force and, if a vacancy then e xists in any Sales Territory, La Jolla shall ( subject to any leg al restrictions on the ability to do so, such as th e Family and Medical Leave Act ) use commercially reasonable effo rts to fill such vacancy within 60 days and continu e such efforts if the vacancy is not filled within such 60 -day period