I once had an old navy cook tell me a story about having been put in charge of the power plant on Iceland for a period of time during WWII.
Seems they had a machinist mate petty officer who was qualified in the power plant field, but the plant was constantly tripping off line, putting the island in the dark.
THe MM was transferred out, and the cook, (who was just passing through Iceland on a ship that had stopped there) was asked these questions.
Do you know anything about an engine? The answer he gave was "if it is running you can hear it."
Do you know anything about electricity? He answered "I know it can kill you."
They said "you are the man we want, come with us," and they put him in charge of the power plant where he stayed for some time.
Seems that the MM was alway "diddling" with something, and tripped the plant off the line in the process on a frequent basis, while the cook, once he got it started, just let it run.
There is a moral to this story that is in answer to your question. Sometimes knowing nothing about the process is more beneficial for a person in a managerial position, than intimate knowledge.
I have seen sharp competent I/C tecnicians, for example, who upon being promoted to shop foreman, had to be eventually transferred out, because they could not keep their hands off their men's work. Someone with no specific instrumentation knowledge, but with good department management skills had to be transferred in.
Perhaps this is what is going on in your situation.
rmw