If the quality of our defense this year hinges on the ability of young, yet embattled CB DeAngelo Hall, then the key to the Redskins offense this year is not a member of the much-criticized offensive line, it's second year Tight End Fred Davis.In doing our player expectation projections last week, it was obvious that Davis' spot on the chart is the one area where there's really no one else to pick up the slack if he falters. If Malcolm Kelly is too hurt to play, there's Devin...