What Are 49ers Keys to Victory in NFC West Showdown Against Cardinals?

The San Francisco 49ers are surviving on a wing and a bread bowl of chowder, somehow starting out 2-0 in spite of a multitude of injuries to key players. However, in Kyle Shanahan we trust going into the Week 3 matchup against the Arizona Cardinals . Let's take a look at a few keys to victory that the 49ers could use on Sunday.