// Make this return true when this Command no longer needs to run execute()
 protected boolean isFinished() {
   return (!drive13Feet.isRunning());
 }
 // Called when another command which requires one or more of the same
 // subsystems is scheduled to run
 protected void interrupted() {
   drive13Feet.cancel();
 }
 // Called just before this Command runs the first time
 protected void initialize() {
   drive13Feet.start();
 }