The Bears traded for Nick Foles, signed Jimmy Graham and Robert Quinn in free agency and acquired potential starters in Cole Kmet and Jaylon Johnson in the second round of the draft. But it seems like the offseason addition they’re counting on the most is offensive line coach Juan Castillo.
Bears general manager Ryan Pace and coach Matt Nagy rarely miss a chance to tout the impact if Castillo, who replaced the well-respected Harry Hiestand after last season. The firing of Hiestand wasn’t a big surprise after the offensive line and running game struggled in 2019. But getting an upgrade seemed unlikely.