The Bears were apparently very interested in signing Michael Bennett, but he re-upped with the Seahawks. So once free agency officially opened for business at 4 p.m., Chicago came to terms with former Raiders defensive end Lamarr Houston, according to CBS Sports NFL Insider Jason La Canfora.
In the hours leading up to free agency, the Bears were reportedly trying to trade defensive end Julius Peppers, but his contract made any deals prohibitive and there's a realistic chance he's released.
Houston ranked 11th among all 4-3 defensive ends, according to ProFootballFocus (Bennett ranked fifth, Peppers 36th), so he should upgrade a unit that struggled to pressure the quarterback a season ago.) Football Outsiders ranked Chicago's defense 25th overall, 18th against the pass and 32nd against the rush.
Expect the Bears to continue to upgrade their D in the coming weeks and months.