The San Francisco 49ers haven't made a ton of additions in free agency, but here's how the players they did add can ...

San Francisco coach Kyle Shanahan ... round pick Isaac Guerendo. The 49ers traded Jordan Mason to the Vikings and lost Elijah Mitchell to the Chiefs in free agency, thinning out a backfield ...

The interior of the defensive line would make sense to address quickly as San Francisco lost defensive tackles Javon Hargrave ...