At one point he referenced what he saw as her lack of ability: "We see plenty of [Grable] – singing, dancing and wearing clothes of surprising magnificence. We even see her trying to act, which is something less of a pleasure."
He remarked that she was abundant in certain areas but lacking in others: "We observe Grable performing various activities like singing, dancing, and dressing extravagantly.  Even her attempts at acting are not particularly pleasant."