There are five offensive players and four defensive players
The defense matches up in man-to-man, leaving one offensive player unguarded
The offense tries to score
The defense has to scramble to cover the ball and players that cut to the basket
Rotate on the air-time of the ball - be there on the catch
Maintain proper defensive positioning
Communication is key!
Defense is not in a zone, but they are helping on the players who are unguarded