San Francisco 49ers head coach Jim Harbaugh yells during the second quarter of an NFL football game against the Buffalo Bills in San Francisco, Sunday, Oct. 7, 2012. (AP Photo/Tony Avelar)

Associated Press
San Francisco 49ers head coach Jim Harbaugh yells during the second quarter of an NFL football game against the Buffalo Bills in San Francisco, Sunday, Oct. 7, 2012. (AP Photo/Tony Avelar)
San Francisco 49ers head coach Jim Harbaugh yells during the second quarter of an NFL football game against the Buffalo Bills in San Francisco, Sunday, Oct. 7, 2012. (AP Photo/Tony Avelar)
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