Prior to a first configuration change of a first resource, such as a network resource of a network, a processor determines a first performance metric of a second resource, such as a second network resource of the network. By incorporating the fixture into the instrument tray, a large, stable base is provided for holding the implant. The jigsaw still comprises a control device used to control the blade scrolling and the blade pendulum movement and control device comprises a blade button, a set of link rods and a pendulum axis.