The thing that worries me about Watts is that he actually does have elite physical attributes, but he doesn't use them. He could not gain another ounce of muscle for the rest of his career, but still be a great of the game with the physical tools he has right now. Unfortunately, that doesn't seem like it will happen. "Jack Watts marks strongly out in front on a lead" is a sentence we should hear ten times a week. I've never heard it once in his entire playing days.
Great endurance, tall, good hands and super quick. He is all of those things, but doesn't put them to use.