I have just seen a lot of people (not here really) accuse McCallum of being a mindless yes man. Or say that there is nobody there to question Lucas' artistic choices like Kurtz did.

I have also seen people assume Lucas thought everyone would love Jar-Jar, but is crazy and out of touch with what audiences want.

Lucas knew exactly what he was doing, and in the end the people who didn't agree with him didn't matter.

Just like the people who didn't agree that the original Star Wars would make any money didn't matter.

I think at some point we need to examine the possibility that Lucas might actually know a little more about what makes a successful movie than we do.