Thiel, a billionaire investor and&nbsp;Facebook&nbsp;(<a href="http://money.cnn.com/quote/quote.html?symb=FB&amp;source=story_quote_link">FB</a>,&nbsp;<a href="http://money.cnn.com/technology/tech30/index.html">Tech30</a>)&nbsp;board member, joined the transition team days after the election and is gradually bringing on other members of his circle.