I want to know the answer to the following question:
Who believe that the Ming dynasty did not exercise any direct political control over Tibet?
All the background I'm provided with is that "With the example of the Ming court's relationship with the fifth Karmapa and other Tibetan leaders, Norbu states that Chinese Communist historians have failed to realize the significance of the religious aspect of the Ming-Tibetan relationship.". Is that enough to answer the question?
Answer: no