The reason it wasn't a big deal that the San Francisco 49ers' interest in Toby Gerhart didn't develop is the same reason it wasn't considered a blow that Anthony Dixon left the 49ers to sign with Buffalo in free agency.Bruce Miller will be healthy in 2014.The fullback's game was evolving nicely when he suffered a broken scapula in the 14th game of the season. He was put on the injured reserve. The 49ers missed Miller.The running game was a bit flat after he was shelved.