The 49ers' defensive line is the strength of the team. Not just for the chaos it creates, but also for the players it helps attract.
Last season, San Francisco allowed the fewest passing yards per game (169.2) and tied for the fifth-most sacks (48) in the NFL. Anyone who watched the 49ers' defensive line quickly realized it was one of the elite units in the league.
That included new 49ers offensive tackle Trent Williams, who sat out all of last season amid a dispute with Washington. That gave Williams plenty of time to study up on the top D-lines in the league, which ultimately influenced which teams he would be open to joining.