im not sure about the trainers,most if not all trainers can't give 1 fighter 100% so if khan needs this he will have to have his dad training him,and to tell you the truth i don't think he can be changed.
he has got away with his style against half decent world class fighters with not much dig(apart from maidana,but he has been found wanting at world level as well)i think his style has been ingrained in him and he has been sussed out
he has got away with his style against half decent world class fighters with not much dig(apart from maidana,but he has been found wanting at world level as well)i think his style has been ingrained in him and he has been sussed out