While Apple Stores have been extremely successful, they are very closely controlled, and may be encountering problems as the chain grows ever bigger, according to a Wall Street Journal expose. The paper's information comes from interviews with current and former Apple workers, as well as confidential training manuals and a recording of a store meeting. One reason relatively little is known about how Apple Stores operate is because the company imposes tight lips on retail clerks, banning them not only from discussing product rumors but also writing anything about th