#4 steps out to the wing and receives the entry pass from #1.  #4 passes to #2.
 

#4 cuts to the ballside short corner area as #2 dribbles up.  #5 flashes to mid post.  #2 is looking for #4 or #5.
 

If the ball is reversed, #4 and #5 follow the ball to the opposite short corner and mid post areas.
 

If the ball is passed into the short corner, the mid post dives to the rim.
 

If the ball is passed into the mid post, the short corner dives to the rim.