I don't see any need for box jumps in a Novice's training.
Sled pushing would depend more on context. In a perfect world, you'd finish your Novice LP without doing or focusing on anything else. But sometimes in real life, the demands of a seasonal sport, a specific event, or a psychological disorder come in to play. In those cases, some sled pushing might be included in a Novice's program, though again, I don't consider this ideal.