Rye Brook, New York-based fund-of-funds firm Titan Advisors is not the firm it once was. President George Fox started G. Fox & Co. as a hedge fund advisory business in 1992. Nine years later he changed the business model and name to Titan Advisors with help from chief investment officer Thomas Holliday, Douglas Herman and $28 million. Within five years, assets had soared to $2.17 billion. Titan’s firmwide assets peaked at $4.2 billion in June 2008 but fell to…