Of course he is not doing the job he was elected for: The man is totally incompetent. That means there are many aspects of his job that he has no clue even exist. If responsible underlings are getting those things done, or getting bad or illegal things stopped, that's a good thing.
Every President has underlings. They probably carry out 95% of the job. The big difference here is that most Presidents understand what those things are, and could step in and do them.