Great drill to develop good defensive anticipation skills. (Reading the pass).
Procedure:
Set-up two defenders at the top of the key (spaced evenly the width of the backboard), three offensive players even with the foul line - one in the center and the other two at the wings around the three point line, and one guard at half court.
Have the guard bring the ball across half court and make a pass to one of the three players, the two defenders must communicate with each other and try to intercept the pass.