Senior management in a lot of places is by now trained and groomed to see everything as a process, so principles don't cut it. Similarly, consultancies need to

Senior management in a lot of places is by now trained and groomed to see everything as a process, so principles don't cut it. Similarly, consultancies need to sell "products", i.e. implementable processes and change, so again principles are a problem. Lastly, in a lot of places the actual users or product owners from the business side are only involved via representatives, so there is no closed loop to run.