This episode's headline: Role Playing?; Newsmaker - Fannie Mae; Global Job Hunt. The guests include SHEILA TATE, Former Nancy Reagan Press Secretary; ANN LEWIS, Democratic Consultant; LINDA CHAVEZ, Republican Analyst; LYNN CUTLER, Democratic Consultant; JAMES JOHNSON, Chairman, Fannie Mae; PAUL SOLMAN; CORRESPONDENTS: CHARLAYNE HUNTER-GAULT; PAUL SOLMAN. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER