Originally posted by norcal49er864:
"Smith can dictate his play calls at the line of scrimmage more than in the past. He usually calls two plays in the huddle, and depending on the defense, Smith will yell out, "Let it roll" or circle his fists in front of his chest. That signals to the offense to go with the first play that's called. If he wants to go with the second play, Smith will yell, "Kill, kill" or make a slashing motion with his hand."
This would indicate that the first play called in the huddle is usually a running play. Not surprising, since the Niners want to run the ball more often than not. But it's entirely possible that the second play ("kill, kill") is also a running play... just a different one.
Most teams practice some form of self-scouting to identify tendencies. I'm sure the 49ers do this too, and they're not gonna let Alex Smith walk up there and telegraph the play every time. Harbaugh and Roman are way too smart for that. You've also got to remember that in the Niners' offense, running plays are so innovative and multiple that the question facing the Defense is not "Run or pass?" but "How
are they gonna run it?"