◆Pointing out their partner's mistakes
◆Always returning on the same side of the court.
◆Not having total recall of all the points played in the present game.
◆Not calling the score aloud before each point.
◆Returning serves and ground strokes too high over the center of the court. (Allowing the net player to poach or the serve and volleyer to hit down at your partner.)
◆Failing to make clear which player should go after the floating ball, the set up,the shot down the middle or who should go after the lob over your head.
◆Getting the second serve in weakly, having no regard for your partner's safety or ability to maintain the offensive.
◆Lobbing over your opponents' heads and not following it to the net to intercept the next ball as an offensive shot or overhead.
◆Not having another game or style change when nothing you are doing is working. (Not able to change a losing game.)
◆Staying back on the baseline even when your partner is playing offensively at the net.
◆Not covering the lob over your head in the air as an overhead.
◆Talking too much during the game in progress. (Stalling, not having continuous play.)
◆Refusing to play serve and volley or to return and volley. This is doubles.
◆Hitting too many returns and ground strokes to the outside of the court instead of hitting to the middle.
◆Worrying too much about your alley instead of the middle of the court.
◆Playing with the same partner too much, adapting to their specific weaknesses or strengths and unable to play with a new partner and adapt to them.
◆Warming up too long or stretching on the court rather than off the court before the match.
◆Never having or offering new balls to play with.
◆Failing to play as a team or unit.
◆Playing too much with the same people all the time. (Not allowing for creativity, spontaneity or ability to adapt to other styles.)
◆Failing to play with weaker players thus allowing them to gain confidence and the ability to improve. Remember, at one point in time you were the weaker player.