Greatness requires the push and pull of two complementary expertises, in healthy tension.
A dialog.
The producer and the creative are both required.
It is not a matter of the producer deferring to the creative.
It is a matter of co-creating, a vision that could not exist without either of them.
Both have to commit to co-creating.
Otherwise, the producer could say, "The creative failed at producing the result, it wasn't me. I did a good job, I just picked the wrong horse."
When you commit to doing it together, you take responsibility for the outcomes.
Greatness comes from constraints and creativity.
You need both.