One of the main issues dogging the 49ers last year was the questionable effectiveness of the offensive line. Left tackle has been, and should be for the foreseeable future, anchored by stalwart and ever-reliable Joe Staley. The 2018 offseason brought an upgrade at center in Weston Richburg, and (what should be) an upgrade at right tackle in rookie Mike McGlinchey. However, both guard spots remain glaring question marks. Despite having three former first-round options at the position, there are no clear-cut starters as of yet.
The trio of Joshua Garnett, Laken Tomlinson, and Jonathan Cooper is a talented, but wholly underperforming group.