Recommendation: Basically Kiffin feels as though it's time for Walker's play to start justifying Oakland's major financial investment in him. Saturday night's exhibition game against the Cardinals, would be a good place to start. "Yeah, I hope so," Kiffin said, when asked if he expected Walker to do well Saturday. "I spoke with him (Sunday) morning about that, about this is a big game for him, even though it's a preseason game...it's Week 3, and he'll play more than he's played in the first two — and in the fourth game we don't play our starters hardly at all — so, it's a big week for him."