help identify when these adjustments need to made.
  The last key to this serve receive is the back-up.  Balls served to seams, or areas between two players lanes of responsibility should be covered by two people.  Below is a chart that will show who should pass each serve.  Possession is based upon where the serve is coming from and where the passer is located.  The goal is to try and make a passer move toward the target and pass the ball.
  The other player should be backing up the passer in case there is any confusion about possession of the ball, and if the ball should move out of the primary passer's area of responsibility.
  Quite simply serve receive decides matches.  Being able to control the ball and stay in system as much as possible is the key to scoring points.  With a good pass we can open up multiple options at the net and make it difficult for the block and defense to stop hitters.  Understanding the areas of responsibilities, communicating with other players in serve receive are vital to controlling the ball off a serve.