The 49ers — who acquired standout RB Christian McCaffrey at the trade deadline last season — won the trade deadline for the second consecutive season.
San Francisco's defence has been just as big of a problem as quarterback Brock Purdy during the team's current three-game losing streak.
Particularly worrisome is the pass rush. Defensive end Nick Bosa has just three sacks despite receiving a five-year, $170 million agreement in the summer.
The addition of Young gives the 49ers a good edge defender who offences will have to plan around, which might provide Bosa more opportunities to succeed in one-on-one situations.
If the Bears dream extremely big, maybe they can rank in the top 30 in the league in sacks at season's end. Even if the team acquires Sweat at the trade deadline.
Instead, they gave up a top-40 pick for Sweat, who will have to carry a terrible pass rush on his own. In contrast to his time in Washington, when he played with three other previous first-round picks.