San Francisco 49ers: 5 Biggest Questions Heading into the 2012 Season

The San Francisco 49ers enter training camp with realistic Super Bowl expectations—a far cry from a year ago—but are not without questions. The following questions—and their respective answers—will ultimately determine whether or not the team reaches its high expectations.

Feel free to add any that I may have missed in the comment section below. 

How much is left in Frank Gore's tank?

Not as much as there once was, that we know. And that's fine. Gore doesn't need to be the 20-plus-carries workhorse he once was. Not with the talen...

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