Grading the 49ers: Offensive line
Before: Joe Staley, Mike Iupati, Jonathan Goodwin, Adam Snyder, Anthony Davis, Alex Boone, Chilo Rachal, Daniel Kilgore and Mike Person. Grade: C+ Why: LT Joe Staley was a Pro Bowler and LG Mike Iupati was very good, but the mere presence of RG Chilo Rachal in the starting lineup at the beginning of the season nearly sunk the entire offense. Harbaugh benched him for Adam Snyder, who upgraded the right…