In Business This Week
-- John Bogle will give up the top job at Vanguard Group to President John Brennan.
-- Maurice Saatchi made peace with Cordiant, the successor to his old agency.
-- Wall Street veteran Joseph Perella will head Morgan Stanley's investment banking.
-- British Airways wrote off half of its ill-fated $400 million investment in USAir.EDITED BY KEITH H. HAMMONDS