Don't know much about Costa to be honest. Isn't he only a bit loco on field rather than off as well? Besides, its just this 'Balotelli just needs the right manager' rhetoric that I find a bit cliched and rose-tinted. For me there have been enough events at several clubs and with various managers that indicate that Balotelli is a much bigger risk than some seem to acknowledge. Does that mean he is a lost cause and will never reach his potential? No, but it does warrant significant caution and may mean that we are better off looking elsewhere.