Good offense makes you win matches.
Defense makes you unbeatable.
However, offense can act defensively in its application. By forcing your opponent into a defensive position, you are able to hide your lack of defense.
Example, if you are a phenomenal wrestler with zero ability off your back, you could very well win the World Championships as long as you were able to impose your top game on every single opponent.
So there is actually a third factor.
The selection of the battle ground or “enforcing your will”