A non-stop series of attacks works a lot better than a single attack.
We’ve all felt the frustration of drilling a technique dozens of types, but still being unable to execute it during sparring. Against an opponent with even the most basic understanding of Jiu-Jitsu, it can be hard to pull off a single technique in isolation. When an opponent knows what you’re trying to do, just “doing the move correctly” isn’t enough.
Many students erroneously assume that the secret to executing a move effectively is to drill it so many times that you can perfectly follow each step described during instruction. In reality, single attacks in isolation often don’t work because your opponent is able to brace and defend against a single move.
However, even if a technique doesn’t work, it forces your opponent to react in a way that may create openings. This means that your goal isn’t just to successfully execute a technique; it’s to use techniques to create openings for follow-up techniques.