I observed this drill at a recent basketball camp. It’s a super drill but very physically demanding. The lecturer stated that this drill is used by the Chicago Bulls daily.
Equipment: 1 Basketball, 2 chairs and 4 colored scrimmage vest per team.
Drill begins with ball being placed in bounds at halfcourt Team A and B are on one end of the court. Two players from Team C are sitting in chairs at half-court and other two players are tandem at the other basket.
Team A places ball in play trying to score against Team B. On change of possession (either made basket by Team A) or Team B (steals or rebounds missed shot), Team B transitions into front court against Team C.
Team A which lost possesion of the ball, transitions 2 players to the chairs and 2 remaining for defense.
The two players from Team C who are sitting in chairs cant get out of chairs until ball crosses halfcourt.
After ball crosses half-court, these player must run to center court touch hands. After touching, both players transition to help other Team C team members stop Team B.
If you have more than 12 players, you can rotate another set of players in when one team scores a predetermined number of baskets.
Attacking defense 4-on-2 and physical conditioning
Minum 3 sets of 4 players (12 players) Maximum of 20 players

The basketball drills are licensed under a Creative Commons License.
TLC: Pål Degerstrøm 2000-2008