Difficult but not impossible. I'd start with the weight gain. I think he concentrated more on his power and wanting to trade rather than move and throwing heaps of punches. Wrong strategy. Surely JJ is not so fit fitness-wise that JP can't match him.
I look at fights from a strategic point of view. What could have JP done differently to win the fight. He KNEW about JJ's work rate. He KNEW JJ could take a hard punch. And yet he played into JJ's strengths. It's why Jennings lasted 12 rounds with JJ. He just didn't have enough power to win the fight. But what Jennings did was the right idea.
As Sun Tzu says:
“If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.”
I look at fights from a strategic point of view. What could have JP done differently to win the fight. He KNEW about JJ's work rate. He KNEW JJ could take a hard punch. And yet he played into JJ's strengths. It's why Jennings lasted 12 rounds with JJ. He just didn't have enough power to win the fight. But what Jennings did was the right idea.
As Sun Tzu says:
“If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.”