A more recent example is Wall Street Journal publishing group Dow Jones, owned by the Bancroft family for more than 100 years -- until, that is, last August.
   Carlock says the family made a series of errors in their handling of the business, including poor communication and a lack of clear goals.
    The quirk, of course, was that Dow Jones was purchased by another family-run company, media tycoon Rupert Murdoch's News Corp. A further twist is that at 76, Murdoch now faces succession issues of his own.