In the event any arti­cle, sec­tion, or por­tion of this Agree­ment should be held invalid and unen­force­able by any court of com­pe­tent juris­dic­tion, such deci­sion shall apply only to the spe­cif­ic arti­cle, sec­tion, or por­tion there­of spec­i­fied in the court’s deci­sion; and upon issuance of such deci­sion, the Employ­er and the Union agree to imme­di­ate­ly nego­ti­ate a sub­sti­tute for the inval­i­dat­ed arti­cle, sec­tion, or por­tion thereof.