STANFORD, Calif. -- David Shaw swears he understands. Shaw, the Cardinal head coach, knows there's a limit to how many times junior Christian McCaffrey can take the ball and be effective. The latest test comes Friday night, when the No. 7 Cardinal play at No. 10 Washington (9 p.m. ET, ESPN).
"He can't take every single rep and be able to survive a 13-, 14-game season," Shaw said. "He can't. Even at that age, in the best shape of [his] life, and a phenomenal athlete, probably one of the best-conditioned athletes in the nation. Somebody else has to take some reps.