Miami Dolphins vs SF 49ers: 10 Keys to the Game for San Francisco

For the 2012 San Francisco 49ers, there have been more highs than lows.

Of course, there has been an in-between. In Week 13, there was almost a second one.

Three weeks ago, 49ers quarterback Alex Smith suffered a concussion and left the Week 10 contest at home against St. Louis.

In stepped second-year signal caller Colin Kaepernick, who led the Niners back in the contest before the teams played to a tie, the first regular season knot after overtime in four years.

Smith wasn't ready to return against the Bears at the Stick on Monday Night Football, so Kaepernick got his first start and won. He started again at Bleacher Report - San Francisco 49ers
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