These trainers are over hyped , you've either got it or you haven't , Andre ward is with his same trainer since 10 y/ old , calzaghe was trained by his father who had no boxing experience , marvin hagler stuck with the same trainer all through his career and if you read hands of stone they got a trainer in for Roberto who watched him in the gym and said this guys an animal just keep him fit , there's countless other fights who have become great with just ordinary trainers who they have stuck with, if khan keeps needing different trainers by now he's never going to make it