Sir Howard Stringer will step down as Sony CEO and president on April 1 . Sony has appointed Kazuo Hirai , currently executive deputy president , to replace Stringe . Comment:
Sir Howard Stringer will step down as Sony CEO and president on April 1 . Sony has appointed Kazuo Hirai , currently executive deputy president , to replace Stringe . Sony has faced an uphill battle in recent years as its stock value fell 54 % in 2011 .