The identity of the San Francisco 49ers' offense during the tenure of Jim Harbaugh has been to focus on the running game.

The 49ers had the second fewest passing attempting in 2011 and 2012, and now rank last in passing attempts in 2013.

Colin Kaepernick threw for over 400 yards in Week 1 against the Green Bay Packers, but the 49ers have shifted more toward the run in the subsequent weeks.