This is one of my player's favorite drills. The drill is set up exactly the same as the 3 on 2 we all use as a pregame warm-up. Two players in the key on defensive, the rest of the team in three lines at half court.
The three offensive players attack and try to score. After the score or a turnover the two defensive players become the offensive players and try to advance the ball to half court. If the basket is made, they must take the ball out of bounds with one trying to receive the ball against three defensive players. The defense tries to trap and steal the ball. If they get a steal, turnover, 10-second count, etc. they get the ball back and try to score again. The drill ends when the two offensive players advance the ball to half court.
Minimum of 5, I use the entire squad
Games are won in spurts. We try to get our players to realize this and emphasis effort on the defensive to get a steal and easy basket. Usually the team that has the most spurts in the game comes out the winner. I make the players who begin on defensive go against two sets of three before they get to come out of the drill. Two poor offensive players together on defense can stay in this drill for a long time. You want to make sure you referee and call all the violations.
Defensive skills, passing, shooting, rebounding
This basketball drill is licensed under a Creative Commons License. This drill is from Pål Degerstrøm at www.degerstrom.com/basketball.