The management's effort to adopt Agile can fail to realize the expected business benefits, because it does not realize that Agile transformation must bring the change of organizational behavior.
The management can adopt the formalities of Scrum such as Scrum events and artifacts, but when it fails to recognize the importance of a self-managing team and servant leadership, Agile becomes mediocre. Agile transformation should bring the change of not only Process and Technology, but also People - an organization and its culture!