Complacency is the forerunner of mediocrity. You can never work too hard on attitudes, effort and technique.
In practice, don't just run basketball drills, teach the players how to play basketball.
If I cover my head with my hands, it means deny the ball to the opponent's ball handler.
Proper prior planning prevents pitiful poor performance.
Simplify the game as much as possible. When you add, you must subtract.
If you have to 'try hard' to 'try hard, you are already beaten.