Editor’s note: This is the final installment of Matt Maiocco's position-by-position breakdowns leading up to 49ers training camp, which opens with their first full-squad practice on Saturday.
Who they have: Joe Staley, Alex Boone, Daniel Kilgore, Marcus Martin, Erik Pears, Brandon Thomas, Trent Brown, Joe Looney, Dillon Farrell, Ian Silberman, Andrew Tiller, Justin Renfrow, Ben Gottschalk, Sean Hooey, Patrick Miller
Who they lost: Mike Iupati, Anthony Davis, Jonathan Martin, Fouimalo Fonoti
Looking back: A unit that had been, perhaps, the strength of the offense was not nearly as imposing last season.