Clackamas Town CenterA security guard looks over the food court at the Clackamas Town Center mall as it opens, on Friday, Dec 14, 2012 in Portland, Ore. The mall is reopening, three days after a gunman killed two people and wounded a third amid a holiday shopping crowd estimated at 10,000. The shooter, Jacob Tyler Roberts, killed himself after the attack Tuesday afternoon.."You kind of state your case with your play and I felt like I've done that," Smith said. "It's tough. It stings the most just because I really felt there was something special going on here and you sacrifice and invest so much time.

Those gimmicks can put a new spin on an old play. The 49ers have unveiled a sweep, for example, in which both guards pull, but the running back flips a Uturn in the backfield and takes a pitch while running in the opposite direction of the linemen. It's all part of a playbook that Fox analyst and former NFL defensive lineman conservatively estimates includes 15