As a general rule, the discretion to make decisions should be delegated to the people who must implement those decisions. If you are not contributing code or being woken up in the middle of the night to answer a page, have the good sense to remember that no matter how important your job is, you are not the implementor. You do not operate the system, but you can find the operators and make sure they have the air cover they need to be successful. Empower the operators.
