Adroit (from the freedictionary): quick or skillful or adept in action or thought; quick in thought or reaction; quick-witted.
Mrs. Whitman announced on Tuesday that she had hired Mr. McCarthy, one of the most adroit media consultants in the nation with an impressive track record that includes work on the 1985 re-election campaign of former Gov. Thomas H. Kean and the 1990 campaign of Gov. Pete Wilson of California.
But Mr. McCarthy is best remembered as the producer of the controversial Willie Horton ad, broadcast during the 1988 Presidential campaign between Vice President George Bush and Massachusetts Gov. Michael Dukakis. The ad attacked Mr. Dukakis as soft on crime and cited the case of Willie Horton, a black convicted murderer who escaped from a weekend furlough program in Massachusetts and attacked a white couple in Maryland. - NYT
Synonyms: adept, deft, nimble, masterful, proficient, artful, quick-witted, dexterous