49ers Mock draft 3.0: It’s all about the trenches

Photo by Michael Wade/Icon Sportswire via Getty ImagesIn the third installment of my mock draft series, I will address both sides of the line of scrimmage early and often. That’s right, bust out all those cliches about how football games are won and lost in the trenches.

History tells us that it’s good business to allocate day two picks on the offensive line, and the 49ers have a decent amount of uncertainty there beyond Trent Williams at this point. Alex Mack returning certainly helps, but even so, it would probably be for one final season.

Dan Brunskill is more than a serviceable player, particularly for the price tag he comes with. However, beyond this season, the 49ers are facing a…