Iowa State's two-quarterback system working well

Posted by ESPN.com's Tim Griffin

Iowa State has jumped to a quick 20-0 lead over South Dakota State midway through the second quarter.

Quarterbacks Austen Arnaud and Phillip Bates both directed touchdown drives and Grant Mahoney added field goals of 35 and 36 yards to account for the Cyclones' early scoring binge.

An opportunistic Iowa State defense has already accounted for three interceptions.

The Cyclones are playing as well on opening night as Baylor is struggling.