> "he was trying to ad-lib the whole thing"
He actually stood up in front of America to support the nomination of a presidential candidate with no more than a vague idea of what he wanted to say?
That doesn't jive with his demonstrated production and directorial skills, nor do his demeanor and delivery, lack of a talented tongue notwithstanding, jive with his acting skills.
I very much hope his performance foreshadows the rest of the Romney campaign.