Takedown is an important technique which involves off-balancing an opponent and bringing him or her to the ground, typically with the attacker landing on top. Takedown includes those wrestling moves for BJJ which are quickly advancing on an opponent.
In the above slide-show, Defense Soap is showing 10 effective throws and takedown wrestling moves for BJJ. If you do BJJ or submission grappling then you should have some ways to get the fight to the ground.
Almost all of a high-level training is geared towards working on the setups and getting thousands of thousands of repetitions. Knowing more throws is the most effective way to win matches. Brazilian Jiu Jitsu basic groundwork is so important that we have even less time to train standup. These techniques are both efficient and effective.