Frederic Cumenal Steps Down as CEO Chairman Michael Kowalski Will Serve as Interim CEO; Board Will Work with Executive Search Firm to Recruit Successor Reaffirms FY 2016 Earnings Guidance NEW YORK, 2017-Feb-07 — /EPR Retail News/ — Tiffany & Co. (NYSE:TIF) today (February 5, 2017 ) announced that Frederic Cumenal has stepped down as…