All the players are at the baseline in three lines. O2 starts the drill by passing to O3. O3 passes the ball back and O2 now passes it to O1 for a lay up. O3 rebounds the ball and passes it to O2. O1 and O3 crossover underneath the basket and come back in the opposite direction so O3 will score the next layup. The drill is over when everyone goes through each line once.