Let’s start with center, the last position on the offensive line and an area that has been held down exclusively by Sam Mustipher for the last two seasons.
The table below shows how Mustipher held up in pass protection compared to the 39 centers around the NFL who had at least 200 pass blocking snaps. All data is from Pro Football Focus (PFF), and true pass sets are intended to remove plays designed to minimize the pass rush, such as screens, play action, and rollout. Cells highlighted in green indicate a rank in the top 25%, while red indicates the bottom 25%.
There’s really only one takeaway here: Sam Mustipher is awful in pass protection. Every column that’s not red just missed the cutoff. (Every Bears fan already knows this, so I don’t think we’re breaking any new ground.)