Is root access ever OK? Sure, as administrators do have legitimate reasons for such permissions; they may have to configure a server to run applications, for example. But there should be some type of logging or other controls that track what the administrators are doing, if only to provide checks and balances.
So a reasonable approach is to give root access only to those administrators that need to manage a specific application.
What you don't want to do, however, is add a huge amount of administrative overhead to your environment. You may want to look at a tool that manages these user privileges in a granular manner. Cyber-Ark and Cloakware are vendors that provide products for such a situation.
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