Performance Evaluation

An amendment is certainly acceptable; deleting that section is also feasible as long as your 'Performance Metric' section articulates your processes for using the data you collect relative to purchasing to inform behavior. Having a program and a performance metric is, of course, not terribly helpful if noone is collecting data and reviewing it on a regular basis. So folding the portion of your policy that describes what you do with the data into the Performance Metric section makes a lot of sense (and you'll note that the EBOM Policy Model links both metric and evaluation in that section as well).