For the 18 weeks of NFL will just boost Chris's Johnsons stats. He is already a dominate force and he is just geting started he will be elite for next 5 to 10 years.So if you make the NFL season longer you will just make his season better than what it is. The only compostion He has is Adrian Peterson but in my opionion he fumbles the ball way to much he's powerful but he needs to hold on to the ball. It's a League of Running Back's so its alot Elite one's but I think Chris Johnson Tops the list.