New Public Management

What are the shortcomings of New Public Management? Do these shortcomings make it unrealistic? Why? An international perspective can be found at
World Bank Group (2008) Public sector reform: What works and why?
https://openknowledge.worldbank.org/bitstream/handle/10986/6484/448180PUB0Box310only109780821375891.pdf?sequence=1&isAllowed=y
OpenKnowledge, can you give both good and/or bad examples of what you learned in this report? Feel free to also refer to other academic resources.