I would say most of all it comes down to players

More so than coaching. The players need to execute - that means blocking, tackling, run fits, underneath coverage, etc.

For some reason the players seem to have a hard time rising to the occasion against San Fran. The gameplans are sound - it's a similar gameplan that let them win 12 games this year. The offensive system was installed over the summer.

Mostly I would say when Deebo or Kittle has the ball in his hands - for god's sake - tackle them!