The greatest area of concern for the 49ers' offense this season is their abysmal second down performance. Time and time again, this offense has put themselves in extremely difficult spots on third down due to their inability to generate any kind of consistent success on second down.
The third-down conversion rates are typically what get scrutinized the most when a team is struggling to string together drives, but in the case of the 49ers this season, there is a clear correlation between their failures on second down and the inability to prevent drives from stalling out.