Why? Because refusing to talk on the court is like playing volleyball with a blindfold on.
How are teammates supposed to know "who" is going to do "what" if members of the team stay silent while the ball is in play.
I first learned how important good volleyball communication skills were when I travelled from my home state of California to play in college on a volleyball scholarship as a Lady Vol for the University of Tennessee, Knoxville.
In high school, during girls games, I didn't talk much on the court because I knew I was one of the main hitter's on the team and I knew the my setter was going to set me the ball the majority of the time.
being silent on the court and maintaining my silence for my own
personal selfish reasons while playing, was not beneficial, for any of the other players on the team.
They taught me that volleyball players need to know what each other sees and what each other is thinking while each play is developing.
This is especially true since volleyball players can't read each other's minds and there's very little time during the game for players to guess whether one of their teammates is bringing an "off the court" problem that has nothing to do with volleyball, on the court.
I wasn't talking on the court.
I didn't share any information with teammates which didn't help them understand what I was thinking or what I intended to do.
Being silent on the court and trying to maintain my silence for my own personal selfish reasons while playing, was not beneficial to the players on my team.
They taught me that college volleyball players need to know what each other sees and what each other is thinking while the play is developing and throughout the rally of the game, especially since players can't read each other's minds.
Volleyball is a team sport, not an individual sport.
This is one of the most important of all the rules of volleyball communication a player can learn.
Players on the same team should always talk to each other and direct traffic among themselves while the ball is in play.