Be highly competent at everything and truly excellent at a few important things – that's the path to greatness in Jiu jitsu. You need competence at everything so that you don't have any obvious weaknesses for an opponent to exploit. You need real excellence at a few things to be able to break through even the toughest defenses and get to the win. You can't be the best at everything but you can definitely be good enough to be defensively strong, you definitely can be the best at a small number of things and that's enough to win even at the highest levels
