The league will adjust and we will see more running eventually. Especially once teams go with smaller faster dline and switch from 2 safeties and 2 corners to 1 safety and 3 corners on what were previously considered non-passing down and distance. These smaller sets will be ripe for the power running game. The only sad thing is that the backs of today are just not as big or hardy as they were 10 years ago so the first back that comes out with some size and heart will be a major problem for these new light and fast defenses. It wont happen this year but I would think within in the next 5 years