Surely the effect of importing technology into all workplaces and globalization will result in the remaining jobs being precisely the ones that are the most difficult to measure in-progress and for whom just the measurement itself risks interfering with the job?

That said, the importance of such measurements along the way could stem from the positive feedback loop it creates. Measuring enables you to identify what you can eliminate/automate/outsource etc until you meet some "Creativity Efficiency Frontier"...

Or, there could be other benefits from measurements to do with personal, workplace or even business well-being - perhaps benefits that could be inferred from statistical analysis.