In the martial arts, one school of thought holds that you should change your game to match your opponent's. Example: If you're a stand-up fighter and you're facing a grappler, you should immediately switch into grappling mode. Problem is, that requires you to train to such an extent that each subset of your skills is superior to the skills of a person who focuses on only that range of combat. Your grappling must be better than a grappler's, your kicking must be better than a kicker's and your punching must be better than a puncher's. It's a tough task, to be sure.