Sports psychologist Dr Zach Johnson has coached the last 30 major winners . Morris Pickens , Zach Johnson and Lucas Glover have all benefited from his skills . Though his presence may be unnoticed by spectators lining the fairways , his influence on the players he coaches is becoming far more conspicuous . Pickens : ` ` For Tiger , mental strength has always been part of his game ''
Sports psychologist Dr Zach Johnson has coached the last 30 major winners . Morris Pickens , Zach Johnson and Lucas Glover have all benefited from his skills . Pickens : ` ` For Tiger , mental strength has always been part of his game ''