Genius Ditz/Playing With

Basic Trope: The Ditz is really smart.
 * Straight: Clueless Alice is really clueless of her talents, but she's competent with one of them.
 * Exaggerated: Clueless Alice looks stupid in everything she does, but manages to be competent in everything.
 * Justified Alice has a very narrow field of interests.
 * Inverted: Ditzy Genius