Since the first ones knocked out are often the ones who need the most practice, those knocked out should be required to do something to either get back into the game or to keep them working on their ball skills until the game is over. One possibility is to set up a parallel game for those knocked out to participate in.
Every kid has a ball.
You get them all around you dribbling their balls as close as they can get. Keep telling them to get their heads up and see the open spaces. Flags Players start with a ball and 2 flags. A flag is a cloth strip about 2 inches wide and a foot long. Flags are stuck into the waistband of the players' pants at each side.