Former Coke Exec to Become Starwood CEO  NEW YORK (Reuters) - Steven Heyer, a former top executive  at Coca-Cola &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KO.N target=/stocks/quickinfo/fullquote"&gt;KO.N&lt;/A&gt; who left shortly after being denied the  chief executive slot in May, is set to take the helm of  Starwood Hotels Worldwide &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=HOT.N target=/stocks/quickinfo/fullquote"&gt;HOT.N&lt;/A&gt;, the company said on Tuesday.