LOS ANGELES — Speaking in the bowels of the LA Memorial Coliseum after one of the best performances by a Penn State tight end in program history, Tyler Warren talked as if he had just walked the dog, cut the grass, or performed some other mundane, nonchalant task. Minutes earlier, his head coach, James Franklin, was a few feet away again, making the case that the Virginia native is not only the best tight end in college football but also one of the sport’s best players. After Saturday, it’s hard to argue either point. Warren did everything for the Nittany Lions in their 33-30 win over USC. He …