Been going through a number of coaching clinic videos and DVDs recently and one of the common concepts that keeps coming up breaking presses and traps is the idea of having 3 passes available at all times -- sideline, middle, and behind.
You can use any number of sets, 1-3-1, 1-4 across, 1-2-2, but the idea is to always make sure you have those three passes available at all times, with one of the players cutting diagonally to become the new middle player and everyone else cutting and replacing. In Bruce Weber's Press Break DVD, he calls this "pistons",
The idea translates to attacking half-court traps as well. The idea is you always want to present 3 pass options -- sideline (O3), middle (O4), and behind (O2). Lason Perkin's talks about it briefly in his Euro Ball Screen Offense,
Note above that the 4th player (O5) is always opposite the ball. This is for spacing as once the pass is made to one of the 3 options, you want to have a player on the weakside who is open for a quick reversal and layup.
In addition to this schematic concept of sideline-middle-behind, players need to know how to square up so that they can see the 3 passes and not throw the ball to a defender, and learn other concepts such as the crab dribble for pressure release which I've talked about earlier.
Anyways, hope everyone is enjoying watching basketball at the olympics. A devastating opening loss from the Team Canada Women's team against Russia, but they will come back today against England.