I think you open a new topic, "Improving the approach to measuring performance quality" for researchers to work on. Proactive measures should be included.

Can you specify what area you are looking at?

Certainly, within performance management metrics largely used in the public sector to measure school/hospital/university performance on an organisational level and at an individual employee level, many problems can be identified. These relate to the quantitative metrics used and the politics of performance management ie. making public services more like the private. The metrics and assumptions underlying them - that public service delivery is like car production on an assembly line are deeply flawed and a major cause/indicator of public sector crises. New and critical approaches are urgently required that are informed by an understanding of the distinctiveness of public sevice organisations, staff and services.