Trio of QBs find success in Week 1, but running backs struggle in losses

The opportunity is there every week. Some players seize it. Others let it slide away. Here's a look at the players who shone or slipped in Week 1:

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1. USC QB Mark Sanchez
There's no doubting Sanchez's immense physical tools: a strong arm, excellent release quickness and underrated mobility.
But like most quarterbacks who have limited starting experience, Sanchez is still a work in progress. Offensive coordinator Steve Sarkisian told me that for Sanchez to take his game to the next level, he must force fewer throws and show better touch underneath.