He does need to study up, and learn how to speak his mind while controlling his message. Our preferred candidates are preferred because they speak from the heart, but in a candid moment that simple lack of polish can come off as amateurish. Cain, Palin, and Bachmann all need to be studying with advisers every spare moment of the day. Not people who want to advise them how to "be", just advisers to school them on all the issues so that when they inevitably find themselves off script, they don't stick their foot in it or come up blank.