This is story No. 7 in an ongoing, off-season series on Michigan's key faces and position groups.
ANN ARBOR -- While the tackle positions along Michigan's offensive line remain a work in progress, the interior has shown some promise.
Come 2018, it's just a matter of which three will emerge.
Michigan has four contenders vying for the left guard, center and right guard positions, and one of them has the built-in advantage of extensive playing time during a difficult, and sometimes frustrating, season.
Ben Bredeson is the only one of the four to start 12 of Michigan's 13 games at left guard in 2017, earning second-team all-Big Ten honors from the coaches, media and Associated Press.