Troy Smith: What Are The Implications Of Him Starting For The 49ers?

Troy Smith, the San Francisco 49ers third-string quarterback, will start in London Sunday.

The change signifies several things. First, that David Carr is not a viable option. Second, that Alex Smith's shoulder is in fact, well, busted. Lastly, this is a sign that 49ers coaching has opened up to experimentation on offense.

A positive light shines on each of these, but a negative shadow is cast as well.

David Carr Is Not a Viable Option

Carr accomplished so little against Carolina<...

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