When the Chicago Bears overhauled their offensive line last offseason, familiarity drove the move to acquire guard Jonah Jackson from the Los Angeles Rams. Jackson spent the first four seasons of his career with the Detroit Lions, overlapping with then-offensive coordinator Ben Johnson the entire time.
The question that ultimately surfaced was how Jackson fit into the plan. Primarily a left guard by trade previously, he became the Bears' right guard and he struggled early in the season. He has turned things around since then though, and entering Week 16 he's Pro Football Focus' 12th-highest graded guard with the 10th-best run blocking grade at the position.