Patience is the virtue

One of the great difficulties I have as someone who has coached males and females at various ages is to remember that in must let the players make mistakes and then adapt and figure out the drills.
Too often I can find myself thinking to stop the drills and offer more instruction when all my players need is more repetitions to figure it out. Expecting players to perfect a drill quickly is actually not smart, if your players are have perfected a drill then it is time to move on to the new drills that will challenge them.