Money talks in business. : Castle Harlan CEO John Castle argues investors should take a long-term perspective to avoid concerns over the short-term headline risks to stocks. Companies looking to prosper are having more success in the private equity market, according to Castle Harlan CEO John Castle. “If you go back to the late 1960s it was an industry that was measured in tens of millions of dollars,” Castle said to FOX Business’ Maria Bartiromo on Friday.