The primary duty of all members of staff and of others engaged on a case basis shall be to the individual defendant, with like effect and to the same purpose as though privately engaged by him and without regard to the use of public funds to provide the service. This shall not preclude the designation or assignment of different individuals to perform various parts of the service from time to time, the duty in such cases to be the same as would exist in the case of a privately engaged law firm.
N.J.S. § 2A:158A-11